Thursday

December 18, 2014

December 18, 2014

Number of results: 37,734

**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 ...
*February 26, 2014 by Chelsey*

**chemistry**

A fixed quantity of gas at 27°C exhibits a pressure of 729 torr and occupies a volume of 5.70 L. (a) Use Boyle's law to calculate the volume the gas will occupy if the pressure is increased to 1.75 atm while the temperature is held constant. (b) Use Charles's law to calculate ...
*April 27, 2010 by Chase*

**chemistry**

A fixed quantity of gas at 27°C exhibits a pressure of 729 torr and occupies a volume of 5.70 L. (a) Use Boyle's law to calculate the volume the gas will occupy if the pressure is increased to 1.75 atm while the temperature is held constant. (b) Use Charles's law to calculate ...
*April 30, 2010 by chase*

**chemistry**

A fixed quantity of gas at 27°C exhibits a pressure of 729 torr and occupies a volume of 5.70 L. (a) Use Boyle's law to calculate the volume the gas will occupy if the pressure is increased to 1.75 atm while the temperature is held constant. (b) Use Charles's law to calculate ...
*April 30, 2010 by chase*

**Chem **

Assume the volume of a filter flask is 250.0mL. You have added (25.0 + 10.0)mL of solution so the volume of gas is (250.0 - 35.0) = 215.0mL. Calculate the extra volume of gas forced into the burette because of the measured average temperature of 23 degrees Celsius.
*October 20, 2010 by Alix*

**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?
*March 17, 2011 by Samantha :)*

**Science**

A gas has a volume of V1 = 550 mL. If the temperature is held constant, what volume would the gas occupy if P2 = 22 P1? Answer in units of mL
*March 2, 2014 by Angela*

**chemistry**

A gas has a volume of V1 = 565 mL. If the temperature is held constant, what volume would the gas occupy if P2 = 16 P1? Answer in units of mL
*May 30, 2014 by reis*

**chemistry**

A gas has a volume of V1 = 550 mL. If the temperature is held constant, what volume would the gas occupy if P2 = 22 P1?
*April 11, 2011 by John*

**Chemistry**

At standard temperature a gas has a volume of 275ml if the temperature is increased to 130C buit the pressure is held constant what is the new volume?
*April 19, 2011 by Karla*

**chemistry**

At standard temperature, a gas has a volume of 312 mL. The temperature is then increased to 115◦C, and the pressure is held constant. What is the new volume? Answer in units of mL
*February 21, 2013 by Anonymous*

**chem**

At standard temperature, a gas has a volume of 345 mL. The temperature is then increased to 124◦C, and the pressure is held constant. What is the new volume? Answer in units of mL
*May 30, 2014 by reis*

**chemistry**

a gas occupies a volume of 5.00L at 27 degreesC and 742 mmHg. if the volume is held constant and the temperature is increased by 2 degreesC, what is the final pressure of the gas?
*December 11, 2012 by Nessa Marie Mejares*

**Physics**

The pressure of a gas in a cylinder with a movable piston is increased from 45 kPa to 90 kPa. If the temperature is held constant, and the initial volume of the gas in the cylinder is 0.5 m^3, what is the final volume of the gas? a. 2 m^3 b. 1 m^3 c. 0.5 m^3 d. 0.25 m^3 e. 0....
*January 22, 2013 by Tommy*

**Physics**

The pressure of a gas in a cylinder with a movable piston is increased from 45 kPa to 90 kPa. If the temperature is held constant, and the initial volume of the gas in the cylinder is 0.5 m3, what is the final volume of the gas? a. 2 m3 b. 1 m3 c. 0.5 m3 d. 0.25 m3
*January 22, 2013 by Tommy*

**Physics**

The pressure of a gas in a cylinder with a movable piston is increased from 45 kPa to 90 kPa. If the temperature is held constant, and the initial volume of the gas in the cylinder is 0.5 m3, what is the final volume of the gas? a. 2 m3 b. 1 m3 c. 0.5 m3 d. 0.25 m3
*January 22, 2013 by Tommy*

**chemistry**

a gas has a volume of 95 mL at a pressure of 930 torr. What volume will the gas occupy at standard temperature if pressure is held constant?
*January 26, 2014 by Mikhail*

**Chemistry**

To what Celsius temperature must 44.0 mm Hg of methane gas at 89.0°C be changed so the pressure will be 83.0 mm Hg? Assume the volume and the amount of gas are held constant.
*May 1, 2010 by Tiffany*

**Chemistry**

To what Celsius temperature must 44.5 mL of methane gas at 43.0°C be changed so the volume will be 63.0 mL? Assume the pressure and the amount of gas are held constant.
*May 2, 2010 by Megan*

**Chemistry**

To what Celsius temperature must 32.5 mL of methane gas at 60.0°C be changed so the volume will be 62.0 mL? Assume the pressure and the amount of gas are held constant.
*April 14, 2011 by Mary*

**science**

A fixed quantity of gas at 22°C exhibits a pressure of 739 torr and occupies a volume of 5.46 (a) Calculate the volume the gas will occupy if the pressure is increased to 1.74 atm while the temperature is held constant.
*December 14, 2012 by Samantha*

**Physics**

As its volume is doubled from an initial value of 0.088 m3, a sample of gas is held at a constant pressure of 3.4 × 104 Pa by heating. Then, while a constant volume is maintained, the gas is cooled back to its initial temperature. The work that the gas does on the environment ...
*June 21, 2012 by Kaley*

**Chemistry**

1. Calculate the number of molecules in a deep breath of air whose volume is 2.15 L at body temperature, 36 degrees Celsius, and a pressure of 740 torr. 2.A fixed quantity of gas at 24 degrees Celsius exhibits a pressure of 740 torr and occupies a volume of 4.42 L. a)Use Boyle...
*November 2, 2009 by Emory*

**Chemistry**

What is the final volume of 880. mL of hydrogen gas at 335 mm Hg if the pressure is increased to 735 mm Hg? Assume the temperature and the amount of gas are held constant.
*May 1, 2010 by Tiffany22*

**Physics**

The cylinder in the drawing contains 3.81 mol of an ideal gas. By moving the piston, the volume of the gas is reduced to one-fourth its initial value, while the temperature is held constant. How many moles Δn of the gas must be allowed to escape through the valve, so that...
*October 27, 2014 by Bobby *

**Chem**

(a) Use Boyle's law to calculate the volume the gas will occupy if the pressure is increased to 1.79 atm while the temperature is held constant. 3.17 L (b) Use Charles's law to calculate the volume the gas will occupy if the temperature is increased to 175°C while the ...
*May 8, 2014 by Sarah Pick*

**Chemistry**

To what Celsius temperature must 44.5 mL of methane gas at 43.0°C be changed so the volume will be 63.0 mL? Assume the pressure and the amount of gas are held constant. I have already tried T1V1=T2V2
*May 2, 2010 by Megan*

**chemistry**

At atmospheric pressure, a sample of O2 gas has a volume of 55mL at 27 degrees celcius. What volume in mL will the O2 gas occupy if the temperature is decreased 0 degrees C and the pressure is held constant?
*November 24, 2009 by jeff*

**chemistry**

Q: If the temperature is constant, what change in volume would cause the pressure of an enclosed gas to be reduced to one quarter of its original value? I think if the chance in volume increases, the pressure of the gas decreases. Q: Assuming the gas in a contain remains at a ...
*March 4, 2008 by stacie*

**Chemistry**

At standard temperature, a gas has a volume of 275mL. The temperature is then increased to 130. Celcius, and the pressure is held constant. What is the new volume? How do I work this? v1 = 275mL t1 = 130. C or 403K v2=??? t2 = ??? Can someone help me please?
*March 19, 2009 by Chopsticks*

**Physics**

The rms speed of a sample of gas is increased by 5% . What is the percent change in the temperature of the gas? What is the percent change in the pressure of the gas, assuming its volume is held constant? please help!!
*December 10, 2009 by Jim*

**PHYSICS**

The rms speed of a sample of gas is increased by 8% . What is the percent change in the temperature of the gas? What is the percent change in the pressure of the gas, assuming its volume is held constant? PLEASE HELP
*December 7, 2010 by Christy*

**Physics**

Consider an ideal gas enclosed within a container with a moveable piston and a valve through which additional ideal gas can be added to the container. Which one of the following actions may not result in an increase in pressure? Increase the temperature, the volume, and the ...
*July 20, 2014 by Sam*

**chemistry**

the pressure on a gas at-73 Cis doubled, but its volume is held at constant. What will the final temperature be in degrees Cesius?
*November 14, 2010 by chelsey*

**chemistry**

A gas has a volume of 91 ml at a temperature of 91°C. This gas is kept at constant pressure but its temperature is reduced to 0.0°C. At this temperature the volume of the gas will be approximately
*November 18, 2009 by patricia*

**Science**

Consider a mole of CO2 and a mole of N2O each at STP. Which of the following statements are true? Check all that apply. ~Both gases will have approximately the same density at these conditions. ~When the volume is not held constant, raising the temperature will decrease the ...
*April 14, 2011 by Laura*

**Math**

Charles's Law states that at constant pressure, the volume of a fixed amount of gas varies directly with its temperature measured in degrees Kelvin. A gas has a volume of 250 mL at 300 K. what is an equation for the relationship between volume and temperature?
*January 24, 2009 by Angie*

**Chemistry**

A sample of gas is in a 50.0mL container at a pressure of 86 kPa and a temperature of 25°C. The entire sample is heated to a temperature of 35°C and transferred to a new container whose volume is 65.0mL. The pressure of the gas in the second container is: 64 kPa 115.6 kPa 101....
*May 5, 2011 by Bai*

**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) ...
*February 17, 2011 by Pressure of gas*

**Physics **

A cylinder with a piston is filled with ideal gas. The gas temperature is held at 450 K. The cylinder is heated by an oven through a square metal rod connected between the oven and the cylinder. The rod has sides d = 2 cm and length L = 2.3 m. (a) If the oven is held at 850 K...
*November 12, 2010 by Need Help*

**Eighth Grade Science**

A tube has gas within it whose volume equals 250 liters at a temperature of 300 celsius K . If the pressure of the gas is kept constant, what will the temperature be if the gas volume is increased by 50 liters ?
*November 19, 2008 by Jordan*

**Science**

When scientists record the volume of a gas, why do they also record the temperature and the pressure? Because the P and T affect the volume of the gas. A measure of matter is mass, to get the mass of gas one must know volume, temperature, and pressure. The density of a gas is ...
*October 28, 2006 by Electra*

**chem**

a gas volume has of v1=450ml. if the temp is held constant, what volume would gas occupy if the pressure p2=2p1? omg i cant figure anything out!!!!!!!!
*June 4, 2008 by amie*

**physics**

The volume of a gas is 2.6 L and its temperature is 338 K . If the volume of the container were changed to 3.2 L, what temperature would the gas be? (All other values remain constant.)
*April 10, 2012 by jwayne*

**CHEM**

A cylinder with a movable piston contains 2.00 of helium, , at room temperature. More helium was added to the cylinder and the volume was adjusted so that the gas pressure remained the same. How many grams of helium were added to the cylinder if the volume was changed from 2....
*October 24, 2008 by Kara*

**Chemestry**

A cylinder with a movable piston contains 2.00 of helium, , at room temperature. More helium was added to the cylinder and the volume was adjusted so that the gas pressure remained the same. How many grams of helium were added to the cylinder if the volume was changed from 2....
*October 3, 2009 by Monica *

**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...
*November 24, 2007 by Anonymous*

**Chem**

Can you please tell me if these are right? A gas has a volume of 2.8 L at a temperature of 27 degrees C. What temperature degrees C is needed to expand the volume to 15 L? (P and n are constant.) I got 1334 degress C Combined gas law problem a balloon is filled with 500.0 mL ...
*November 14, 2010 by Alice*

**chem**

A sample of gas has a volume of 50 mL and an initial temperature of 380 K. The temperature must be changed to _____ K in order to halve the volume. Assume constant pressure and amount for the gas.
*October 10, 2014 by bekah*

**Chemistry **

A gas has a volume of 50.0 cm3 at a temperature of -73°C. What volume would the gas occupy at a temperature of -123°C if the pressure stays constant
*June 12, 2011 by Richard*

**chemistry**

A gas has a volume of 50.0 cm3 at a temperature of -73°C. What volume would the gas occupy at a temperature of -123°C if the pressure stays constant?
*April 23, 2012 by devin*

**calculus**

Boyle's law states that if the temperature of a gas remains constant, then PV = c. Where P is the pressure, V is the volume, and c is a constant. Given a quantity of gas at constant temperature, if V is decreasing at a rate of 13 in.^3/s, at what rate is P increasing when P = ...
*May 2, 2010 by Hussain*

**General Chemistry**

A cylinder with a movable piston contains 2.00g of helium,He, at room temperature. More helium was added to the cylinder and the volume was adjusted so that the gas pressure remained the same. How many grams of helium were added to the cylinder if the volume was chanded from 2...
*June 20, 2012 by Kim*

**Chemistry**

The pressure on a gas at -58 degrees Celcius is doubled, but its volume is held constant. What will the final temperature be in degrees Celsius?
*March 9, 2014 by Linda*

**physical science**

If a quantity of gas in a piston cylinder has a volume of 0.9 m3 and is initially at room temperature (30°C) and is heated in an isobaric (constant-pressure) process, what will be the temperature of the gas in degrees Celsius when it has expanded to a volume of 1.2 m3?
*May 2, 2011 by Eric*

**Chem-Temperature and Volume Relationships**

What condition must be true when conducting temperature volume measurement? Why would a rubber balloon be a poor system for this kind of expirement? The general equation is (P1V1)/T1 = (P2V2)/T2 If V and T are being studied, then P must be held constant. Would you think P ...
*January 25, 2007 by Chrissy*

**chem**

A sample containing 6.40 g O2 gas has a volume of 15.0 L. Pressure and temperature remain constant. a. What is the new volume if 0.600 mole O2 gas is added? b. Oxygen is released until the volume is 12.0L. How many moles of O2 are removed? c. What is the volume after 7.50 g He...
*November 1, 2012 by tracy*

**Chemistry**

What is the final volume of 725 mL of neon gas at 240.°C if the gas is cooled to 54.5°C? Assume the pressure and the amount of gas are held constant.
*May 1, 2010 by Tiffany*

**Chemistry**

What is the final volume of 945 mL of neon gas at 174°C if the gas is cooled to 58.5°C? Assume the pressure and the amount of gas are held constant.
*April 14, 2011 by Mary*

**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.
*July 28, 2013 by rena*

**Chemistry;HELP**

1. What volume will a sample of hydrogen occupy at 128.0 oC if the gas occupies a volume of 2.23 dm3 at a temperature of 0.0 oC? Assume that the pressure remains constant. (remember to change to Kelvin). 2. If a gas occupies 1733 cm3 at 10.0 oC, at what temperature will it ...
*August 20, 2013 by Unknown*

**Chemistry**

A sample of gas occupies a volume of 500.0mL at .906 atm and 97 C. What will the final temperature (in Celsius) be if it is brought to a volume of 1.05L and a pressure of 502 mm Hg?
*July 11, 2011 by Haley*

**college chemisrty**

A cylinder with a movable piston contains 2.00 of helium, , at room temperature. More helium was added to the cylinder and the volume was adjusted so that the gas pressure remained the same. How many grams of helium were added to the cylinder if the volume was changed from 2....
*July 7, 2010 by Tiffany*

**PHYSICS**

One mole of oxygen gas is at a pressure of 5.25 atm and a temperature of 29.5°C. (a) If the gas is heated at constant volume until the pressure triples, what is the final temperature? ____°C (b) If the gas is heated so that both the pressure and volume are doubled, what is the...
*November 14, 2012 by Sarah*

**chem**

The pressure on a gas at −43◦C is doubled, but its volume is held constant. What will the ﬁnal temperature be in degrees Celsius? Answer in units of ◦C
*May 30, 2014 by reis*

**Chemistry**

A McLeod gauge measures low gas pressures by compressing a known volume of the gas at constant temperature. If 315 cm^3 of gas is compressed to a volume of 0.0457 cm^3 under a pressure of 2.51 kPa what was the original gas pressure?
*April 16, 2009 by Anonymous*

**Chemistry**

1. Reactions follow the law of conservation mass.- T? 3. In a chemical equation, the material to the left of the arrow equals the material on the right.- T 8. In a single replacement reaction, sodium (Na) doesn't replace hydrogen.- F? 16. Increased pressure acting on a gas at ...
*October 26, 2010 by mysterychicken*

**Chemistry **

A gas occupies 275 ml at 0°C and 610 Torr. What final temperature would be required to increase the pressure to 760 Torr, the volume being held constant?
*May 2, 2013 by Chad*

**Math**

I'm having trouble with a math problem, it says: A quantity of gas has a volume of 0.20 cubic meter and an absolute temperature of 333 degrees kelvin. When the temperature of the gas is raised to 533 degress kelvin, what is the new volume of the gas? Thank You. Assuming ...
*July 5, 2005 by Mirayah Robinson*

**Chemistry**

1. If 22.5 L of nitrogen at 748 mm Hg are compressed to 725 mm Hg at constant temperature. What is the new volume? 2. A gas with a volume of 4.0L at a pressure of 205kPa is allowed to expand to a volume of 12.0L. What is the pressure in the container if the temperature remains...
*January 15, 2014 by Ashley Kate*

**chemistry**

A fixed quantity of gas, at constant pressure, occupies a volume of 8.50 L and has a temperature of 29.0 degrees C. What volume will the gas occupy if the temperature is increased to 125 degrees C? 6.4, 11.2, 14.1, 12.6, 4.9
*December 5, 2011 by Anonymous*

**chemistry**

Consider a system consisting of a cylinder with a movable piston containing 10^6 gas molecules at 298K at a volume of 1L. Consider the following descriptions of this system: 1. Initial system 2. Starting from the initial system, the volume of the container is changed to 2L and...
*March 16, 2009 by CHEMistry*

**chemistry**

Consider a system consisting of a cylinder with a movable piston containing 10^6 gas molecules at 298K at a volume of 1L. Consider the following descriptions of this system: 1. Initial system 2. Starting from the initial system, the volume of the container is changed to 2L and...
*March 16, 2009 by CHEM*

**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 ...
*April 6, 2012 by catey*

**chemistry**

Assuming the temperature and pressure are held constant, which of the gas samples has the greatest number of gas particles? 45.0 mL O3 35.0 mL N2 15.0 mL of CO2 25.0 mL of SO3
*January 19, 2012 by Anonymous*

**chemistry**

Assuming the temperature and pressure are held constant, which of the gas samples has the greatest number of gas particles? 45.0 mL O3 35.0 mL N2 15.0 mL of CO2 25.0 mL of SO3
*January 19, 2012 by Anonymous*

**chemistry**

Assuming the temperature and pressure are held constant, which of the gas samples has the greatest number of gas particles? 45.0 mL O3 35.0 mL N2 15.0 mL of CO2 25.0 mL of SO3
*January 19, 2012 by Anonymous*

**chemistry**

i keep trying to do these problems and i don't understand them. please help me!! 1. Gas stored in a tank at 273 K has a pressure of 388 kPa. The save limit for the pressure is 825 kPa. At what temperature will the gas reach this pressure? A. 850 K B. 925 K C. 580 K D. 273 K 2...
*October 10, 2008 by Please Help!*

**chemistry**

1)A sample of CO2 gas which weighs 0.85 grams has a volume of 1.30 liters when collected at 30°C. What would be the pressure of the gas sample? 2) A gas sample has an original volume of 600 ml when collected at 720 mm and 35°C. If a change is made in the gas temperature which ...
*April 22, 2014 by Anonymous*

**Chemistry**

Please help me get started, i'm not asking for the answer, just some help! A gas occupies 340mL at 273 K and 610 torr. What final temperature would be required to increase the pressure to 1 atm, the volume being held constant?
*March 19, 2012 by Desiree*

**Calculus- Please Help!**

Very confused with this question. Amy help would be appreciated. The ideal gas law states that P V = nRT where P is the pressure in atmospheres, V is the volume in litres, n is the number of moles, R = 0.082 L·atm/K·mol is the gas constant, and T is the temperature in Kelvins...
*November 4, 2014 by Anonymous*

**chemistry**

Assuming the temperature and pressure are held constant, which of the gas samples has the greatest number of gas particles? a. 45.0 mL O3 b. 35.0 mL N2 c. 15.0 mL of CO2 d. 25.0 mL of SO with the little 3 at the bottom.
*January 20, 2012 by Anonymous*

**physics**

ideal gas is kept under constant pressure of 1 atm. If initial temperature is 301K and the volume increases by 10% what is the final temperature of the gas? T2=? V1/V2= T1/T2 V1/V2= (301K)/T2 .10/1= (301K)/T2 Is the side with volume correct? The 10% part confuses me. Thanks ...
*December 3, 2007 by Tammy*

**physics**

An ideal gas is kept under constant pressure of 1 atm. If initial temperature is 301K and the volume increases by 10% what is the final temperature of the gas? T2=? V1/V2= T1/T2 V1/V2= (301K)/T2 .10/1= (301K)/T2 Is the side with volume correct? The 10% part confuses me. Thanks...
*December 3, 2007 by Tammy*

**chem**

What is the volume of 325 mL of a sample of gas at 51.0°C and 710. mm Hg if the conditions are adjusted to STP? Assume the amount of gas is held constant.
*November 29, 2010 by Kate*

**chem**

What is the volume of 325 mL of a sample of gas at 51.0°C and 710. mm Hg if the conditions are adjusted to STP? Assume the amount of gas is held constant.
*November 29, 2010 by Kate*

**Chemistry**

What is the volume of 150. mL of oxygen gas at 72.0°C and 110. mm Hg if the conditions are adjusted to 750. mm Hg and 82.5°C? Assume the amount of gas is held constant.
*April 14, 2011 by Mary*

**CHEMISTRY**

A sample of gas in a balloon has an initial temperature of 28 and a volume of 1360 . If the temperature changes to 86, and there is no change of pressure or amount of gas, what is the new volume, , of the gas? Express the volume numerically in liters.
*April 4, 2011 by Anonymous*

**chemistry**

The volume of a gas is 5.80 L, measured at 1.00 atm. What is the pressure of the gas in mmHg if the volume is changed to 9.65 L? (The temperature remains constant.)
*November 15, 2010 by rasheedat*

**CHEM**

A balloon contains 3.3 liters of nitrogen gas at a temperature of 90K and a pressure of 101 kPa. If the temperature of the gas is allowed to increase to 25∘C and the pressure remains constant, what volume will the gas occupy? V=_____L? Ty again!
*April 16, 2014 by Brady*

**chemistry!**

An ideal gas has a volume of 3.0 L. If the number of moles of gas and the temperature are doubled, while the pressure remains constant, what is the new volume?
*May 4, 2010 by jenny*

**chem**

A sample containing 7.60 gas has a volume of 31.0 . Pressure and temperature remain constant.What is the volume after 3.00 is added to the gas already in the container
*October 29, 2010 by Anonymous*

**chemistry**

A sample containing 4.8g of O2 gas has a volume of 15.0L. Pressure and temperature remain constant. What is the new volume if 0.500 mole of O2 gas is added?
*November 16, 2012 by Boo Boo*

**chemistry**

A sample containing 4.8 g of O2 gas has a volume of 15.0L. Pressure and temperature remain constant. What is the volume after 4.00g of He is added to the 4.8g of O2 gas in the container
*November 16, 2012 by Boo Boo*

**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?
*January 17, 2014 by Riley *

**chemistry**

A fixed amount of gas initially at 100 K and pressure P1 is expanded from 1 L to 100 L in a piston. The temperature, T2, of the gas at this point is 50 K. The piston is then locked at constant volume V2=100 L and half the gas is pumped out at a constant temperature of T2 . The...
*December 5, 2011 by laura *

**chemistrty**

A sample containing 7.20g O2 gas has a volume of 33.0L Pressure and temperature remain constant. What is the volume after 4.00g He is added to the O2 gas already in the container?
*April 8, 2011 by nicole*

**Science/Biology/Physics**

Which of the following represents Boyle's gas law? A. Gas turns to a liquid when temperature reaches 0° C (32° F). B. As the volume of a gas increases, the temperature also increases. C. At any temperature, inert gases are less combustible than non-inert gases. D. At a fixed ...
*July 24, 2014 by J*

**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 ...
*February 6, 2014 by Brody*

**chemistry **

Assuming the temperature and pressure are held constant, which of the gas samples has the greatest number of gas particles? Answer 45.0 mL O3 35.0 mL N2 15.0 mL of CO2 25.0 mL of SO3 how would i go about answering this question.
*January 19, 2013 by jakey *

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