Thursday

April 17, 2014

April 17, 2014

Number of results: 73,785

**college (physics thermo)**

A 1.20 mol sample of an ideal diatomic gas at a pressure of 1.20 atm and temperature 380 K undergoes a process in which its pressure increases linearly with temperature. The final temperature and pressure are 680 K and 1.83 atm. (assume 5 active degrees of freedom) b. ...
*Monday, February 2, 2009 at 2:33pm by dennis*

**physics**

A 1.80 mol sample of an ideal diatomic gas at a pressure of 1.20 atm and temperature of 410 K undergoes a process in which its pressure increases linearly with temperature. The final temperature and pressure are 710 K and 1.83 atm. (Note: Volume does not stay constant). What ...
*Thursday, September 18, 2008 at 5:38pm by Nik*

**physics**

Air in a diesel engine cylinder is quickly compressed from an initial temperature of 21.1°C, an initial pressure of 1.00 atm, and an initial volume of 670 cm^3 to a final volume of 44.5 cm^3. a) Assuming the air to be an ideal diatomic gas, find the final temperature (in K). b...
*Saturday, December 31, 2011 at 10:27am by maria*

**physics**

Air in a diesel engine cylinder is quickly compressed from an initial temperature of 21.1°C, an initial pressure of 1.00 atm, and an initial volume of 670 cm^3 to a final volume of 44.5 cm^3. a)Assuming the air to be an ideal diatomic gas, find the final temperature (in K). b...
*Tuesday, December 27, 2011 at 7:51am by maria*

**CHEM**

A) a picture shows a container that is sealed at the top by a movable piston. Inside the container is a ideal gas at 1.00atm , 20.0 *C, and 1.00L. (The pic is of a 2L container which has a piston pushed downward to the 1L level. Under the piston, under the 1L mark, is a sample...
*Sunday, October 28, 2007 at 8:57pm by K*

**physics**

Your question does not make sense. A quantity of material can have a heat capacity, but a process does not. The molar specific heat at constant volume for a diatomic gas is (5/2)R (R is the ideal gas constant) The molar specific heat at constant pressure for a diatomic gas is...
*Thursday, May 16, 2013 at 3:49am by drwls*

**chemistry**

The temperature of a 4.00 L sample of gas is changed from 10.0 C to 20.0 C. What will the volume of this gas be at the new temperature if the pressure is held constant?
*Thursday, March 17, 2011 at 2:57pm by Samantha :)*

**Chemistry**

A sample of an ideal gas in a closed container (3.00 L) at 25.0 degrees C is heated to 300 degrees C. What is the pressure of the gas at this temperature? Do I use P1/T1=P2/T2? I was told to use that, but I don't know what pressure is. Thanks
*Wednesday, April 29, 2009 at 8:39pm by Anonymous*

**CRC**

A sample of ideal gas is in a sealed container. The pressure of the gas is 675torr , and the temperature is 28\, ^{\circ}C . If the temperature changes to 91\, ^{\circ}C with no change in volume or amount of gas, what is the new pressure, P_2, of the gas inside the container?
*Sunday, April 28, 2013 at 2:42pm by Touch*

**Chemistry**

a sample of helium gas is in a closed system with a movable piston. the volume of the gas sample is changed when both the temperature and the pressure of the sample are increased. the table below shows the initial temperature, pressure, and volume of the gas sample, as well as...
*Tuesday, April 19, 2011 at 5:05am by Shanee*

**chem**

a sample of gas is compressed from 3.25 l to 1.20 l at constant temperature. if the pressure of this gas in the 3.25 l volume is 100.00 kpa, what will the pressure be at 1.20 l ?
*Monday, April 5, 2010 at 7:59pm by hasan*

**Physics**

A sample of a monatomic ideal gas is originally at 20 °C. Calculate its final temperature of the gas if the pressure is doubled and volume is reduced to one-fourth its initial value.
*Tuesday, October 15, 2013 at 4:46am by nbi*

**Physics**

A sample of a monatomic ideal gas is originally at 20 °C. Calculate its final temperature of the gas if the pressure is doubled and volume is reduced to one-fourth its initial value.
*Tuesday, October 15, 2013 at 5:44am by Anon*

**chemistry**

A sample of an ideal gas at 1.00 atm and a volume of 1.61 L was placed in a weighted balloon and dropped into the ocean. As the sample descended, the water pressure compressed the balloon and reduced its volume. When the pressure had increased to 45.0 atm, what was the volume ...
*Friday, April 6, 2012 at 11:15am by catey*

**Chem**

a container of 2.00 moles of an ideal gas as 1000 K undergoes a constant pressure and volume process in which the number of moles is increased to 5moles. what is the final temperature of the gas. How do I start this? Do I somehow use the ideal gas law?
*Tuesday, November 30, 2010 at 5:20am by Don*

**Physics 2**

A 1.00-L insulated bottle is full of tea at 88.0°C. You pour out a mug of tea and immediately screw the stopper back on the bottle. Find the change in temperature of the tea remaining in the bottle that results from the admission of air at room temperature. (Let the room ...
*Tuesday, September 17, 2013 at 11:13pm by Andrew*

**Physics 2**

A 1.00-L insulated bottle is full of tea at 88.0°C. You pour out a mug of tea and immediately screw the stopper back on the bottle. Find the change in temperature of the tea remaining in the bottle that results from the admission of air at room temperature. (Let the room ...
*Tuesday, September 17, 2013 at 11:14pm by Andrew*

**chemistry**

The temperature of an ideal gas in a 5.00 L container originally at 1.01 bar pressure and 25 °C is lowered to 220 K. Calculate the new pressure of the gas.
*Sunday, April 28, 2013 at 8:48pm by Kat*

**Chemistry**

Consider an ideal gas encloesd in a 1.00 L container at an internal pressure of 10.0 atm. Calculate the work, w, if the gas expands against a constant external pressure of 1.00 atm to a final volume of 20.0 L. w = ____ J now calculate the work done if this process is carried ...
*Thursday, February 9, 2012 at 2:38am by Eric*

**Physics**

A certain type of ideal gas at pressure p0 is contained in a plugged flask of volume V initially at temperature T1 . The environmental pressure remains constant p0 . (a) As the flask is heated up to temperature T2 , the plug pops out. What is the pressure p2 of the ideal gas ...
*Monday, September 23, 2013 at 5:54pm by Anon.*

**Physics**

A certain type of ideal gas at pressure p0 is contained in a plugged flask of volume V initially at temperature T1. The environmental pressure remains constant p0. (A) As the flask is heated up to temperature T2, the plug pops out. What is the pressure p2 of the ideal gas ...
*Sunday, September 22, 2013 at 3:17pm by Anon.*

**Chemistry**

A sample of an ideal gas in a closed container (3.00 L) at 25.0 degrees C is heated to 300 degrees C. What is the pressure of the gas at this temperature? Do I use P1/T1=P2/T2? I was told to use that, but I don't know what pressure is. Sorry, I posted this earlier, but my ...
*Wednesday, April 29, 2009 at 11:14pm by Anonymous*

**Physics**

One mole of diatomic ideal gas is carried around the cycle shown in fig.2. The temperature and pressure at state D are 300-k and 1.01*10
*Thursday, November 18, 2010 at 8:49pm by Anonymous*

**chemistry**

A sample of an ideal gas at 15.0 atm and 10.0 L is allowed to expand against a constant externam pressure of 2.00 atm at a constant temperature. Calculate the work in KJ for the gas expansion (Boyle's law applies)
*Saturday, October 9, 2010 at 6:19pm by alexie*

**science**

As the pressure of a fixed mass of a gas is increased at constant temperature, the density of the gas increases? As the absolute temperature of a fixed mass of an ideal gas is increased at constant pressure, the volume occupied by the gas increases? The absolute temperature of...
*Saturday, November 24, 2007 at 2:38am by Anonymous*

**chemistry**

A sample of an ideal gas at 1.00 atm and a volume of 1.31L was placed in a weighted balloon and dropped into the ocean. As the pressure had increased to 45.0 atm, what was the volume of the sample? Assume that the temperature was held constant.
*Sunday, July 28, 2013 at 11:57pm by rena*

**physics**

A sample of monatomic gas (£^ = 5/3) is expanded adiabatically from an initial temperature, volume, and pressure of 230. ¢XC, 6.00 litres, and 5.00 kPa, respectively, to a final volume of 7.00 litres. (a) What is the final pressure of the gas? (b) How much work is done by the ...
*Friday, April 30, 2010 at 6:57am by sarah*

**Chemistry**

Nitrogen and hydrogen, with volumes of 12.0 L each, are injected into a sealed rigid reaction chamber containing a catalyst. The pressure of the chamber is 8.00 atmospheres and at a known temperature. The reaction is allowed to proceed to completion while being maintained at a...
*Wednesday, August 10, 2011 at 3:33pm by Neha*

**physics**

a tank of ideal gas is sealed off at 20 degrees C and 1.00 atm pressure. What will be the pressure (in kPa and mmHg) in the tank if the gas temperature is decreased to -35degrees C ? the book answer is 82kPa = 6.2 x10^2 mmHg can you help me figure out how the book got this ...
*Saturday, March 6, 2010 at 5:44pm by phyllis*

**chem**

At what temperature will a 1.0 g sample of neon gas exert a pressure of 500 torr in a 5.0 L container ? or At what temperature will a 0.0470 mol of a gas fill a balloon to 1.20 L under 0.988 atm pressure ?
*Monday, May 14, 2012 at 9:47pm by katie *

**Chemistry**

Consider an ideal gas encloesd in a 1.00 L container at an internal pressure of 10.0 atm. Calculate the work, w, if the gas expands against a constant external pressure of 1.00 atm to a final volume of 20.0 L. w = ____ J now calculate the work done if this process is carried ...
*Friday, February 10, 2012 at 12:58am by Lauren*

**Physics**

A 1.45 mol sample of an ideal gas (γ = 1.40) is carried through the Carnot cycle described in the figure below. At point A, the pressure is 28.5 atm and the temperature is 600 K. At point C, the pressure is 1.00 atm and the temperature is 400 K. How do I get the pressure ...
*Monday, June 6, 2011 at 8:15pm by Alex*

**physics**

an isolated quantity of an ideal gas at 297.2 K has a volume of 14.96 L at a pressure of 1.63 atm. What is the volume of this gas sample when the absolute temperature is reduced to one third and the pressure is divided by five?
*Monday, April 9, 2012 at 11:00am by katie *

**Chemistry**

According to the ideal gas law a 9.03 sample of oxygen gas in a 0.8112 container at 499k should exert a pressure of 456atm. By what % does the pressure calculated using van der waals equation differ from the ideal pressure? For O2 gas a=1.36 L^2atm/mol2 and b=3.18e-2 Hint: %...
*Saturday, January 14, 2012 at 5:46pm by Hannah*

**Chemistry**

You don't need an steps. Avogadro's Law says that equal volume of (ideal) gases at the same temperature and pressure contain the same number of molecules. So you had 3.00 L of one gas, you look for the answer of 3.00 L of another gas if you are looking for the same number of ...
*Wednesday, December 1, 2010 at 11:00am by DrBob222*

**Chemistry **

If an ideal gas has a pressure of 5.63 × 105 Pa, a temperature of 401 K, and a volume of 0.0313 m3, how many moles of gas are in the sample?
*Wednesday, October 16, 2013 at 12:34pm by Blake*

**Chemistry**

A sample of an ideal gas at 15.0 atm and 10.0 L is allowed to expand against a constant external pressure of 2.00 atm at a constant temperature. Calculate the work in units of kJ for the gas expansion. (Hint: Boyle's law applies) Please explain thoroughly! thank you!
*Sunday, October 3, 2010 at 11:16pm by Jack*

**chemistry**

A sample of an ideal gas at 15.0 atm and 10.0 L is allowed to expand against a constant external pressure of 2.00 atm at a constant temperature. Calculate the work in units of kJ for the gas expansion. (Hint: Boyle's law applies) Please explain thoroughly! thank you!
*Monday, October 4, 2010 at 6:57pm by Jack*

**Physics**

A 4 liter sample of a diatomic gas with γ =1.4 confined to a cylinder, is carried through a closed cycle. The gas is initially at 1.00atm. and 300K. First, its pressure is tripled under constant volume. Then it expands adiabatically to its original pressure. Finally the ...
*Thursday, February 6, 2014 at 6:05pm by Brody*

**Physics**

The drawing shows an ideal gas confined to a cylinder by a massless piston that is attached to an ideal spring. Outside the cylinder is a vacuum. The cross-sectional area of the piston is A = 2.50 10-3 m2. The initial pressure, volume, and temperature of the gas are, ...
*Wednesday, November 16, 2011 at 12:58am by Jasmin*

**Physics **

The drawing shows an ideal gas confined to a cylinder by a massless piston that is attached to an ideal spring. Outside the cylinder is a vacuum. The cross-sectional area of the piston is A = 2.50 10-3 m2. The initial pressure, volume, and temperature of the gas are, ...
*Wednesday, November 16, 2011 at 4:57pm by Angie*

**Physics **

One mole of an ideal gas initially at a temperature of Ti = 7.4°C undergoes an expansion at a constant pressure of 1.00 atm to eight times its original volume. (a) Calculate the new temperature Tf of the gas.______J (b) Calculate the work done on the gas during the expansion....
*Monday, November 26, 2012 at 4:24pm by Sally*

**ThermoPhysics**

During the compression stroke of a certain gasoline engine, the pressure increases from 1.00 atm to 20.5 atm. The process is adiabatic and the air–fuel mixture behaves as a diatomic ideal gas. (a) By what factor does the volume change? Vfinal = Vinitial (b) By what factor does...
*Saturday, May 11, 2013 at 3:48am by CheckingMyAnswers*

**Chemistry**

A sample of argon gas has a volume of 715 mL at a pressure of 1.34 atm and a temperature of 144 Celsius. What is the volume of the gas in milliliters when the pressure and temperature of the gas sample are changed to 622 mmHg and 321 K?
*Saturday, May 15, 2010 at 4:45pm by Kelly*

**chemistry**

a sample of helium gas has a volume of 6.50L at a pressure of 845mm Hg and a temperature of 25 celcius.what is the pressure of the gas in atm when the volume and temperature of the gas sample are changed to the following: a. 1850 mL and 325K
*Sunday, June 27, 2010 at 12:42am by Jetta*

**chem**

A 14.3 L sample of gas at 23.45°C and a pressure of 123.45 kPa is heated until its temperature reaches 43.20°C and its volume is 16.72 L. What is the pressure of the sample of gas
*Thursday, January 10, 2013 at 6:24pm by bob*

**Chemistry**

A sample of gas (26.1 g) initially at 3.00 atm was compressed from 21.00 L to 6.00 L at constant temperature. After the compression, the gas pressure was __________ atm.
*Thursday, April 22, 2010 at 9:40am by Camarra*

**Chemistry**

A 12.7 L sample of gas is under a pressure of 740 mm Hg at 20degrees C. What will be the volume of the gas if the pressure increases to 1.00 atm and the temperature drops to 0 degrees C
*Tuesday, January 20, 2009 at 4:43pm by Mary*

**Chemistry**

1. Calculate the decrease in temperature when 6.00 L at 20.0 °C is compressed to 4.00 L. 2. A container containing 5.00 L of a gas is collected at 100 K and then allowed to expand to 20.0 L. What must the new temperature be in order to maintain the same pressure (as required ...
*Wednesday, January 15, 2014 at 4:01am by Ashley Kate*

**chemistry**

assuming the gas is ideal, we can use the ideal gas law: PV = nRT where P = pressure (in atm) V = volume (in L) n = number of moles R = gas constant = 0.0821 L-atm/mol-K T = temperature (in K) note that n = mass given / molar mass. The molar mass of nitrogen (diatomic gas) is ...
*Sunday, October 23, 2011 at 10:31am by Jai*

**Physics**

A gas cylinder of volume 26 liters contains an ideal gas at temperature 27 degrees C and pressure 1920 kPa. Some of the gas leaks until the pressure falls to 1500 kPa. How many moles of gas leaked, assuming that the temperature remains constant during this process?
*Friday, January 17, 2014 at 5:37pm by Riley *

**chem**

An ideal gas in contained in a cylinder with a volume of 5.0x102mL at a temperature of 30C and a pressure of 710 torr. The gas is then compressed to a volume of 25mL, and the temperature is raised to 820C. What is the new pressure of the gas?
*Monday, November 15, 2010 at 10:18pm by julia*

**chemistry**

1) If the kelvin temperature of a gas sample in a steel tank increases to three times its original value , what will happen to the pressure? I think It will increase. Is this correct? By what factor does the gas pressure change? 2) A gas sample at a constant pressure shrinks ...
*Saturday, March 29, 2008 at 5:45pm by Jason*

**Physics (forgot to post this question #2)**

During the compression stroke of a certain gasoline engine, the pressure increases from 1.00atm to 20.0atm. If the process is adiabatic and the fuel air mixture behaves a a diatomic ideal gas a) by what factor does the volume change b) by what factor does the temperature ...
*Wednesday, March 26, 2008 at 9:15am by ~christina~*

**Physics (12th Grade)**

When an ideal diatomic gas is heated at constant pressure then what fraction of heat given is used to increase internal energy of gas?
*Monday, April 9, 2012 at 12:49am by Tulika*

**Chemistry**

Please let me know how I am doing with the following three chemistry questions. 1.A sample of a gas in thermometer has a volume of 135mL at 11 degree celcius.Indicat what temperature(in k and degree celcius)would correspond to the foll.volume: (a)volume:113mL temperature ?? ...
*Tuesday, November 23, 2010 at 4:17pm by Cliff*

**Chemistry help!**

A sample of gas at a temperature of 37.0°C has a pressure of 725 torr and occupies a volume of 3.44 L. a. Use Boyle’s law to calculate the new pressure if the temperature is held constant and the volume is increased to 6.54 L. torr b. Use Gay-Lussac’s law to calculate the new ...
*Wednesday, February 26, 2014 at 6:46pm by Chelsey*

**chemistry**

Consider a 50 L tank which hold 20 g of hydrogen gas, 20 g of carbon dioxide gas, and 20 g of krypton gas, at a total pressure of 600 KPa. 1. which gas has the largest partial pressure? 2. Which gas the smallest average speed? 3. What is the temperature of this gas mixture? 4...
*Thursday, January 20, 2011 at 2:18pm by Hunter *

**Chemistry**

Consider the molecular level representation of a gas There are: (a picture) 6 blue dots 5 orange dots 3 green dots (i think they are the diatomic one, because it is pairs) If the partial pressure of the diatomic gas is .750, what is the total temperature? I am totally lost, ...
*Sunday, December 9, 2012 at 11:39am by Angela*

**Chem II**

A sample of gas in a 25.0-L containter exerts a pressure of 3.20 atm. Calculate the pressure exerted by the gas if the volume is changed to 45.0-L at constant temperature.
*Friday, October 12, 2012 at 4:09pm by Layney*

**chemistry**

An ideal gas is contained in a cylinder with a volume of 5.0 102 mL at a temperature of 30.°C and a pressure of 710. torr. The gas is then compressed to a volume of 27 mL, and the temperature is raised to 800.°C. What is the new pressure of the gas?
*Thursday, April 29, 2010 at 9:08pm by libby*

**chemistry**

An ideal gas is contained in a cylinder with a volume of 5.0 102 mL at a temperature of 30.°C and a pressure of 710. torr. The gas is then compressed to a volume of 27 mL, and the temperature is raised to 800.°C. What is the new pressure of the gas?
*Thursday, April 29, 2010 at 9:08pm by libby*

**chemistry**

An ideal gas is contained in a cylinder with a volume of 5.0 102 mL at a temperature of 30°C and a pressure of 695. torr. The gas is then compressed to a volume of 25 mL, and the temperature is raised to 814.°C. What is the new pressure of the gas?
*Saturday, November 6, 2010 at 10:50pm by Anonymous*

**Chemistry**

A sample of methane gas at room temperature has a pressure of 1.50 atm and a volumne of 10.5 L. If the temperature is kept constant, what will be the new volume if the pressure is increased to 2.00 atm?
*Sunday, June 3, 2012 at 9:36pm by Mary*

**physics**

The answer to your question is "no". Pressure decreases by a larger factor than the volume increases in an adiabatic expansion. The net result is that the temperature also decreases. PV = nRT is always correct for ideal gases. In an adiabatic process, P, V and T all vary, but ...
*Tuesday, April 27, 2010 at 12:44am by drwls*

**chemistry**

sample of argon gas collected at a pressure of 1.11 atm and a temperature of 28.0 oC is found to occupy a volume of 20.3 liters. How many moles of Ar gas are in the sample?
*Saturday, November 5, 2011 at 12:16am by jen*

**pressure**

a 6.04L cylinder contains 1.71mol of gas A and 4.35 mol of gas B, at a temperature of 33.1C. calculate the partial pressure of each gas in the cylinder. assume ideal gas behavior.
*Wednesday, September 18, 2013 at 6:29pm by Anonymous*

**Chemistry;HELP**

1. A sample of gas under a pressure of 622 kPa has a volume of 233 cm3. The pressure is increased to 988 kPa, while the temperature remains constant. What volume will the gas occupy at this pressure? 2. The pressure exerted by a gas is 2.0 atm while it has a volume of 350 cm3...
*Wednesday, August 21, 2013 at 1:40pm by Unknown*

**CHEMISTRY!! D:**

1. A sample of gas under a pressure of 622 kPa has a volume of 233 cm3. The pressure is increased to 988 kPa, while the temperature remains constant. What volume will the gas occupy at this pressure? 2. The pressure exerted by a gas is 2.0 atm while it has a volume of 350 cm3...
*Tuesday, September 3, 2013 at 1:31pm by Unknown*

**Physics**

A fish at a pressure of 1.1 atm has its swim bladder inflated to an initial volume of 8.16 mL. If the fish starts swimming horizontally, its temperature increases from 20.0 degrees Celsius to 22.0 degress Celcius as a result of exertion. A)Since the fish is still at the same ...
*Wednesday, May 4, 2011 at 1:42pm by Devon*

**PHYSICS**

A sample of monatomic gas (ã = 5/3) is expanded adiabatically from an initial temperature, volume, and pressure of 230. °C, 7.00 litres, and 7.00 kPa, respectively, to a final volume of 10.0 litres. (a) What is the final pressure of the gas? (answer 3.86 kPa) (b) How much work...
*Sunday, May 2, 2010 at 11:52pm by Chris*

**chemistry**

If a gas sample has a pressure of 31.3 kPa at 0.00°C, by how many degrees Celsius does the temperature have to increase to cause the pressure to double?
*Wednesday, October 2, 2013 at 9:32pm by daniel*

**chemistry**

an ideal gas in a closed inflexible container has a pressure of 6 atms and a temperature of 27 degree c. What will be the new pressure of gas of temperature is decreased to -73 degree c. 1) 2atm 2) 3atm 3) 4atm 4) 8atm 5) 9atm
*Saturday, August 27, 2011 at 8:38am by marjani*

**physics**

We start with 5.00 moles of an ideal monatomic gas with an initial temperature of 123C. The gas expands and, in the process, absorbs an amount of heat equal to 1300J and does an amount of work equal to 2040J. What is the final temperature of the gas? Use R= 8.3145J/(mol*K) for...
*Sunday, October 4, 2009 at 2:13am by Annie*

**chemistry **

Hi, I really need help with my lab report because Im completely stuck. Its about the Ideal Gas behaviour. I am given the mass of Nano2 (0.5044g) the temperature of n2 gas (21.2 C) the temperature of water (21.9 C) the volume of n2 (186.1 ml) and the barometric pressure (753.06...
*Tuesday, October 18, 2011 at 12:02am by Tamara*

**Chemistry**

A sample of gas is confined to a cylinder housed with a movable piston. Initially, the gas occupies a volume of 2.7 L at 6.0 atm and 25°C. Calculate the volume of the gas sample if the pressure is reduced to 1.8 atm and the temperature decreased to 20°C.
*Sunday, April 28, 2013 at 4:10pm by Kiera*

**Chemistry**

An ideal gas is allowed to expand from 6.00 L to 45.0 L at constant temperature. By what factor does the volume increase? ? Number The pressure will Increase by that factor or decrease by that factor? If the initial pressure was 105 atm, what is the final pressure?
*Tuesday, October 16, 2012 at 10:08pm by Bill*

**Chem hw!**

1. What pressure would be needed to compress 25.1 mL of hydrogen at 1.01 atm to 25% of its original volume? 2. If the pressure on a 1.04-L sample of gas is doubled at constant temperature, what will be the new volume of the gas? 3. A 1.04-L sample of gas at 759 mm Hg pressure ...
*Thursday, March 11, 2010 at 12:18am by Teisha*

**Chem hw!**

1. What pressure would be needed to compress 25.1 mL of hydrogen at 1.01 atm to 25% of its original volume? 2. If the pressure on a 1.04-L sample of gas is doubled at constant temperature, what will be the new volume of the gas? 3. A 1.04-L sample of gas at 759 mm Hg pressure ...
*Thursday, March 11, 2010 at 12:18am by Teisha*

**Chemistry**

An ideal gas is contained in a cylinder with a volume of 5.0 102 mL at a temperature of 30.°C and a pressure of 710. torr. The gas is then compressed to a volume of 38 mL, and the temperature is raised to 827°C. What is the new pressure of the gas? torr
*Thursday, April 4, 2013 at 11:44pm by Rashid*

**Intro to Physics**

(a) An ideal gas occupies a volume of 3.0 cm3 at 20°C and atmospheric pressure. Determine the number of molecules of gas in the container. _____________molecules (b) If the pressure of the 3.0-cm3 volume is reduced to 2.4 × 10−11 Pa (an extremely good vacuum) while the ...
*Wednesday, November 14, 2012 at 3:44pm by Madison*

**chem**

When the valve between the 2.00-L bulb, in which the gas pressure is 2.00 atm, and the 3.00-L bulb, in which the gas pressure is 4.50 atm, is opened, what will be the final pressure in the two bulbs? Assume the temperature remains constan
*Monday, October 17, 2011 at 8:26pm by ana*

**Chemistry**

If 5.01 moles of an ideal gas has a pressure of 4.81 atm, and a volume of 86.95 L, what is the temperature of the sample in degrees Celsius?
*Tuesday, November 19, 2013 at 7:26pm by Noelia*

**thermodynamics and kinetics**

One mole of an ideal gas at 25C and 1 bar is allowed to expand adiabatically against a constant external pressure of 1.00 bar from 1.00 dm^3 to 10.00 dm^3. Calculate the final temperature, q, w, delta_U and delta_H.
*Friday, October 12, 2012 at 1:36pm by Dorota*

**chemistry**

Assuming the gas is ideal, we use Gay-Lussac's Law to relate the relationship between Temperature & Pressure of gas: P1/T1 = P2/T2 where: T1 = initial temperature of gas (in K) T2 = final temperature of gas (in K) P1 = initial pressure of gas P2 = final pressure of gas *note ...
*Wednesday, July 3, 2013 at 1:27am by Jai*

**pressure**

an ideal gas in a sealed container has an initial volume of 2.70L. at constant pressure, it is cooled to 25.00 C where its final volume is 1.75L. what was the initial temperature?
*Wednesday, September 18, 2013 at 6:13pm by Anonymous*

**chemistry**

if the partial pressure of the diatomic gas is .300 atm, what is the total pressure? 6 blue dots 5 orange dots 3 green dots consisting of 2 dots each (diatomic gas)
*Friday, June 21, 2013 at 4:33pm by Annie*

**algebra**

The volume V of a gas varies inversely as the pressure P and directly as the temperature T. A certain gas has a volume of 20 L, and a temperature of 320 K, and a pressure of 1 atm. If the gas is compressed to a volume of 15 L and is heated to 330 K, what will the new pressure...
*Tuesday, January 27, 2009 at 6:36pm by bob*

**Physics ideal gases**

well, all you can really define is changes dU = n Cv dT but if you say U = 0 at T = 0, I suppose that is ok for a MONATOMIC ideal gas Cv = (3/2) R BUT for diatomic (O2, N2 etc) Cv = (5/2)R So you equation is ok only for changes of temperature (the U depends only on T) for a ...
*Friday, January 2, 2009 at 6:12pm by Damon*

**physics**

A 22.0-L tank of carbon dioxide gas (CO2) is at a pressure of 9.40 105 Pa and temperature of 22.0°C. (a) Calculate the temperature of the gas in Kelvin. K (b) Use the ideal gas law to calculate the number of moles of gas in the tank. mol (c) Use the periodic table to compute ...
*Monday, April 29, 2013 at 11:01am by Annette*

**sciencee**

1. What pressure would be needed to compress 25.1 mL of hydrogen at 1.01 atm to 25% of its original volume? 2. If the pressure on a 1.04-L sample of gas is doubled at constant temperature, what will be the new volume of the gas? 3. A 1.04-L sample of gas at 759 mm Hg pressure ...
*Tuesday, March 9, 2010 at 10:33pm by Teisha*

**Chemistry**

nitrogen gas is at 2.00. c, 2.00 atm pressure and occupies a volume of 10.01. Assume nitrogen is an ideal gas, how many moles of the gas are present?
*Sunday, November 4, 2012 at 11:48am by Tomi*

**physics**

An ideal gas is enclosed in a cylinder with a movable piston on top of it. The piston has a mass of 8,000 g and an area of 5.00 cm2 and is free to slide up and down, keeping the pressure of the gas constant. (a) How much work is done on the gas as the temperature of 0.230 mol ...
*Monday, April 29, 2013 at 11:10am by Annette*

**physics**

An ideal gas is enclosed in a cylinder with a movable piston on top of it. The piston has a mass of 8,000 g and an area of 5.00 cm2 and is free to slide up and down, keeping the pressure of the gas constant. (a) How much work is done on the gas as the temperature of 0.230 mol ...
*Monday, April 29, 2013 at 11:10am by Annette*

**physics**

An ideal gas is enclosed in a cylinder with a movable piston on top of it. The piston has a mass of 8,000 g and an area of 5.00 cm2 and is free to slide up and down, keeping the pressure of the gas constant. (a) How much work is done on the gas as the temperature of 0.230 mol ...
*Monday, April 29, 2013 at 11:13am by Annette*

**chemistry**

Most natural gas consists of about 90% methane, CH4. Assume that the solubility of natural gas at 20 C and 1 atm gas pressure is about the same as that of CH4, 0.02 g/kg water. If a sample of natural gas under a pressure of 20 atm is kept in contact with 1.00 *10^3 kg of water...
*Monday, March 8, 2010 at 1:54am by david*

**Physics**

A sealed container of volume 0.10 m3 holds a sample of 3.0 x 10^24 atoms of helium gas in equilibrium. The distribution of speeds of helium atoms shows a peak at 1100 ms-1. Caluculate the temperature and pressure of the helium gas. (helium atom 4.0 amu) How do I calculate the ...
*Monday, May 19, 2008 at 8:57am by Oli*

**Physics**

A piston contains 1m^3 of helium at a temperature of 250 K and an absolute pressure of 1.0kPa. The following changes are made in sequence: (a) First the volume of the piston is decreased to 0.2 m^3 while the temperature is kept constant, what is the pressure of the gas? (b) ...
*Thursday, February 17, 2011 at 9:02pm by Pressure of gas*

**chem**

If 7.59 moles of an ideal gas has a pressure of 4.41 atm, and a volume of 71.59 L, what is the temperature of the sample?
*Sunday, December 1, 2013 at 11:41pm by dinah*

**chem help!!**

A sealed cylinder of gas contains nitrogen gas at 1.00 103 kPa pressure and a temperature of 14°C. The cylinder is left in the sun, and the temperature of the gas increases to 51°C. What is the new pressure in the cylinder?
*Wednesday, April 14, 2010 at 4:46pm by chandler*

Pages: **1** | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | Next>>