# 3. A gas is confined in a 0.47-m-diameter cylinder by a piston, on which rests a weight. The mass of the piston and weight together is 150 kg. The atmospheric pressure is 101 kPa. (a)What is the pressure of the

17,995 results, page 19-
## Chemistry

The density of pure silver is 10.5 g/cm3 at 20 °C. If 5.25 g of pure silver pellets is added to a graduated cylinder containing 11.2 mL of water, to what volume level will the water in the cylinder rise?

*asked by Crissy on September 5, 2012* -
## Calculus Please Help

The radius of a 12 inch right circular cylinder is measured to be 4 inches, but with a possible error of ±0.2 inch. What is the resulting possible error in the volume of the cylinder? Include units in your answer. my answer 30.16

*asked by Someone on January 12, 2017* -
## Areas and volumes

A regular pyramid is inscribed in a right circular cylinder. The base of the pyramid is an equilateral triangle, and the height of the cylinder is 5 ft. If one side of the base of the pyramid measures 6 ft, what is the volume of the pyramid?

*asked by Ariel on June 3, 2010* -
## Math

the formula for the surface area of a cylinder is: A=2πrh+2πr^2 If the height of the cylinder is 10 inches, and the surface area is 200 sq. inches, determine the length of the radius

*asked by Nancy on April 29, 2012* -
## Calculus

For a cylinder with a surface area of 90, what is the maximum volume that it can have? Round your answer to the nearest 4 decimal places. The volume of a cylinder is πr^2*h and the surface area is 2πrh+2πr^2.

*asked by John on November 4, 2015* -
## chemistry

After you carefully lower each cube into the water of its own cylinder, what will the new water level be in the cylinder with the lead cube?

*asked by Anonymous on February 3, 2015* -
## Geometry

What's the lateral area of a right cylinder if the radius of the base is 12 mm and the altitude of the cylinder is 5 times the base radius?

*asked by Bill on December 30, 2016* -
## science

what is the discharged rate of water leaking at a 4 inches diameter pvc pipe with pressure of 35 psi and a leak hole of 5 mm in diameter

*asked by kristofer ian arbolonio on October 15, 2011* -
## Math

Thank you Ms. Sue. Sorry I didn't tell you we're just learning that pi=3 for now. It made everything complicated for you to check if my answers were correct. :P But what is this formula usually used for?Diameter=Circumference/π? Is it used to find the

*asked by Jerald on March 7, 2013* -
## 5th grade math

The diameter of a penny is 3/4 in. How many pennies are needed to form a row 12in. long? Also to find the circumference of a circle do you use the radius or diameter x 3.14?

*asked by jill on December 8, 2010* -
## chemistry

the total pressure of a mixture of a gas was measured at 0.75 atm. The total moles of the gas were also measured at 7.50. The mixture was analyzed and found to contain three gasses. The moles of gas 1 and gas 3 were found to be 2.43 and 2.17, respectively.

*asked by ciera on April 24, 2014* -
## geometry

If the endpoints of the diameter of a circle are (3, 1) and (6, 5), find the length of the diameter.

*asked by Melissa on October 14, 2012* -
## Physics

A hydrogen atom has a diameter of about 10.1 nm. Express this diameter in meters.

*asked by Amanda on August 27, 2013* -
## Physics

Explain Why the pressure of a gas in a nitrogen container falls continuously when the gas is continuously taken away while the pressure of a gas in a chlorine container remains constant until nearly all the gas is withdrawn

*asked by Joel on August 11, 2016* -
## Torque and shear stress

A solid shaft of 65mm outside diameter and a hollow shaft of 85mm outside diameter are connected by 6 bolts with the mean pitch of thread being 155mm. The shear stress due to the torque on the shafts is equal to the shear stress on the bolts. a) Find the

*asked by Henri on March 22, 2009* -
## Chemistry

You may have noticed that when water boils, you can see bubbles that rise to the surface of the water. a. What is inside these bubbles? i. air ii. hydrogen and oxygen gas iii. oxygen gas iv. water gas v. carbon dioxide gas

*asked by Anonymous on June 25, 2015* -
## chemistry

A sealed container comtains 1.50 mol of nitrogen gas, 2.00 mol of oxygen gas and 3.50 mol of argon gas. If the total pressure is 900 kPa, what is the pressure of the nitrogen gas? I don't know which formula to use

*asked by Cutter on January 19, 2015* -
## physics

A hole in an aluminum plate has a diameter of 1.465 cm at 22.80° C. (a) What is the diameter of the hole at 199.0° C (to four significant digits)? (b) At what temperature is the diameter of the hole equal to 1.463 cm (to three significant digits)?

*asked by aok on December 10, 2010* -
## solid mensuration? help.

Window glass formerly was made by gathering a lump of molten glass on the end of a hollow rod blowing it into the form of a large hollow cylinder about 6 ft. long and 1 1/2 ft. in diameter. This was cut longitudinally and then placed in an oven and heated

*asked by sara on May 12, 2012* -
## Chemistry

a 2.16g sample of Pb(NO3)2 is heated in an evacuated cylinder with a volume of 1.18L. the salt decomposes when heated: 2Pb(NO3)2 (s)_> 2PbO (s) +4NO2 (g) +O2 (g) Assuming complete decomposition, what is the pressure in the cylinder after decomposition and

*asked by mary on January 3, 2012* -
## Math - Check

2. A cube has a side length of x feet. Which expression represents the surface area of the cube? 4x square units 24x square units x'2 square units 6x'2 square units *** 3. Find the surface area of the cylinder that has a height of 15 cm and a diameter of 2

*asked by Carter on April 17, 2016* -
## Math check, please

A cube has a side length of x feet. Which expression represents the surface area of the cube? 4x square units 24x square units x'2 square units 6x'2 square units *** Find the surface area of the cylinder that has a height of 15 cm and a diameter of 2 cm.

*asked by Carter on April 17, 2016* -
## chemistry

Nitric acid, a very important industrial chemical, is made by dissolving the gas nitrogen dioxide (NO2) in water. Calculate the moles of gas produced in 2 L volume container, 736 torr and 50 ºC if the gas behaves as ideal:

*asked by aaloy on April 16, 2008* -
## chemistry

Nitric acid, a very important industrial chemical, is made by dissolving the gas nitrogen dioxide (NO2) in water. Calculate the moles of gas produced in 2 L volume container, 736 torr and 50 ºC if the gas behaves as ideal

*asked by SAARA on April 18, 2008* -
## Chemistry

Please let me know how you would approach the gas law problem. Here goes: If the pressure exerted on the gas in a weather ballon decreases from 1.01 atm to 0.562 atm as it rises. By what factor will the volume of the gas in the ballon increase as it rises?

*asked by Cliff on November 21, 2010* -
## Physics

Which of the following desceriptions about ideal gas is/are correct? 1)An ideal gas obeys Boyle's law only under high temp and low pressure 2)the molecules of an ideal gas have no size 3)the internal energy of an ideal gas consists of kinetic energy only

*asked by Kong on January 27, 2012* -
## Chemistry

3.2 grams of CH4 gas applies 760 mmHg pressure at 273 K temperature. Assume ideal gas behavior. The ideal gas constant is 62.36 (L· mmHg)/(K·mol), and the molecular mass of CH4 is 16 g/mol. How much volume does the gas occupy?

*asked by Summer on March 15, 2018* -
## Physics

An ideal gas starts in state A at temperature T. The gas expands to new volume V by an adiabatic process and its final temperature is T′. What is the relationship between T and T′? A) T < T′ B) T > T′ C) T = T′ D) The answer depends on the heat

*asked by Tim on September 10, 2015* -
## summer math hw

one circle has a diameter of 10 inches. a second circle has a diameter that is twice the diameter of the first circle What is the ratio of the area of the smaller circle to the larger circle

*asked by lesleyy on August 31, 2014* -
## Chem

A scientist finds that one volume of an unknown gas X combines with 2 volumes of another gas Y to form 2 volumes of a new gas with a formula XY2. What is the balanced equation?

*asked by Anonymous on January 22, 2015* -
## Chemistry II

The mass of a particular gas is 3.562 g. If the temperature of the gas in a 126.4 mL vessel is 97.6oC, and the atmospheric pressure is 752.5 mmHg, what is the molar mass of the gas?

*asked by Anonymous on September 1, 2009* -
## Phyics

Three moles of an ideal monatomic gas are at a temperature of 396 K. Then 2438 J of heat is added to the gas, and 897 J of work is done on it. What is the final temperature of the gas?

*asked by Carl on November 20, 2013* -
## Physics

Three moles of an ideal monoatomic gas are at a temperature of 345 K. Then, 2917 J of heat are added to the gas, and 1140 J of work are done on it. What is the final temperature of the gas?

*asked by Adwait on April 22, 2015* -
## physics

five mole of an ideal gas are kept at a constant temperature of 53 degree celcius while the pressure of the gas is increased from 1 atm to 3 atm calculate the work done by the gas

*asked by bed on May 6, 2010* -
## chemistry

You have 43.4 g of O2 gas in a container with twice the volume as one with CO2 gas. The pressure and temperature of both containers are the same. Calculate the mass of carbon dioxide gas you have in the container. 0.678 g 2.71 g 29.8 g 59.7 g none of these

*asked by Ha on May 17, 2016* -
## Physics

Three moles of an ideal monatomic gas are at a temperature of 396 K. Then 2438 J of heat is added to the gas, and 897 J of work is done on it. What is the final temperature of the gas?

*asked by Help Please on November 20, 2013* -
## Physics

Three moles of an ideal monatomic gas are at a temperature of 396 K. Then 2438 J of heat is added to the gas, and 897 J of work is done on it. What is the final temperature of the gas?

*asked by Carl on November 20, 2013* -
## chemistry

Butane gas, C4H10(g), is commonly used as a fuel in barbeque gas cylinders. Write a balanced chemical equation for the combustion of butane gas

*asked by jeannet on September 21, 2013* -
## Chemistry

A gas has a volume of 4.00 at 0. What final temperature in degrees Celsius is needed to cause the volume of the gas to change to the following, if (number of moles of gas) and are not changed? 290 L

*asked by Brittany on November 23, 2010* -
## 11 grade algebra

I buy 20 gallons of gas, 15 premium and 5 regular. Regular gas is 20 cents cheaper per gallon. I spend $42 total; what is the price of each type of gas?

*asked by Norm on November 18, 2009* -
## math

. Darya's car averages 36 miles per gallon. How many gallons of gas will she need for a 480-mile trip? What is the cost of the gas she needs if gas costs $3.12 per gallon?

*asked by jenna on December 12, 2014* -
## chemistry

the volume of a gas was originally 2.5 L; it's pressurewas 104kpa and its temperatire was 270K. the volume of the gas expanded to 5.3 L and its pressure decreased to 95 kpa. What is the temperature of the gas?

*asked by ed on May 9, 2012* -
## chemistry

5.0 moles of a gas is put into a container of 2.0L. More gas is added to the flask s othat there is now 15 moles of the gas present. What must the new volume be if temperature and pressure are to remain constant?

*asked by lelia on February 5, 2010* -
## mass transfer

A catalytic reactor in an automobile is used to convert gas A to gas B where 3 mol of gas A diffuse to the catalyst for every 1 mol of B diffusing away at a distance (mm). the reaction balance is shown as follows: 3A-B

*asked by Nitthiyah on April 9, 2011* -
## Physics(Please help)

A gas, while expanding under isobaric conditions, does 660 J of work. The pressure of the gas is 1.40 x 105 Pa, and its initial volume is 1.70 x 10-3 m3. What is the final volume of the gas? Would I multiply the two values?

*asked by Hannah on June 22, 2012* -
## Biology

I was asked to do a question about Ethylene gas and its effect on plants. One of my classmates said that plants cannot produce fruit and seeds without the gas... I know ethylene helps ripen and quicken the speed of the fruit/seeds, but can't the plant do

*asked by SkatingDJ on April 13, 2016* -
## ARCHIMEDES PRINCIPLE

Using archimedes principle find the depth submerged of a log in water. Diameter 2.3cm radius 1.15cm, mass 37g, length of log 10cm, density of water 1000kg/m^3. Myself I can get to the submereged volume using Fb=Pvg but I don't know an equation for the

*asked by Anonymous on December 6, 2016* -
## Chemistry

Using molar volume (STP) or the ideal gas law equation, determine the molar mass, g/mole, of each of the following:1.)11.1g of a gas that has a volume of 1.50L at STP. 2.) 0.742g of a gas that has a volume 860mL at 1.28atm and 18∘C. 3.) 2.42g of a gas

*asked by anonomous on October 25, 2013* -
## Chemistry

A hydrocarbon gas burned completely in O2 to give CO2 and H2O. It was found that 1volume of a hydrocarbon gas at STP produced 2volumes of CO2 and 3 volumes of steam at STP. What is the emperical formula of this gas? Please help me on how to work out the

*asked by Elie on August 7, 2012* -
## Statistics/Probability

A component is rejected if its has a diameter less than 70mm, reworked if the diameter is between 70 and 73.5mm or more than 78.5mm. The diameter of a component is normally distributed with a mean 76mm and standard deviation 2.5mm. In a batch of 400

*asked by Koylar on July 20, 2014* -
## physics help pleasee!

Three moles of oxygen gas (O2) are placed in a portable container with a volume of 0.0037 m3. The temperature of the gas is 330°C. (a) What is the pressure of the gas? ? Pa (b) What is the average kinetic energy of an oxygen molecule? ? J

*asked by kelsey on December 7, 2008* -
## Chemistry

You have 4.271 x 102 mL of oxygen gas (O2) at 7.656 x 102 mm of Hg and 78 oC. What is the mass of the sample in milligrams? What is the ratio of effusion rates for a light gas, such as HF, to a heavy gas, such as UF4?

*asked by Tif on April 17, 2013* -
## Chemistry

Chlorine gas, CL2 is used to purify water. How many moles of chlorine gas are in a 7.00L tank if gas has a pressure of 865mmHg anf temp of 24 degree celcius?

*asked by Ida on November 13, 2011* -
## Physics

A gas is compressed at a constant pressure of 0.800 atm from 6.00 L to 1.00 L. In the process, 380 J of energy leaves the gas by heat. (a) What is the work done on the gas? (b) What is the change in its internal energy?

*asked by Sam on November 26, 2012* -
## physics

how fast does the level of water in a full 2m high, 10cm diameter tank reduces when a 4cm diameter hole is opened at the bottom?

*asked by josh on June 23, 2010* -
## college physics

how fast does the level of water in a full 2m high, 10cm diameter tank reduces when a 4cm diameter hole is opened at the bottom?

*asked by josh on June 23, 2010* -
## Astronomy

The great galaxy in Andromeda has an angular diameter along its long axis of about 5 degree. Its distance is about 2.2 million light years. What is its linear diameter?

*asked by BB on March 29, 2010* -
## astronomy

If we represent the sun as volleyball (diameter =65cm)how far away would be find earth in this model? Note the suns actual diameter is 1.4x10^9 meters.

*asked by kristy on January 16, 2013* -
## astronomy

The great galaxy in Andromeda has an angular diameter along its long axis of about 5 degree. Its distance is about 2.2 millons light years. What is its linear diameter.

*asked by b on March 27, 2010* -
## Chemistry

An unknown amount of gas occupies 30.0 L at 2.1 atm and 298K. How many moles does the sample contain? What is the mass if the gas is helium? What is the mass if the gas is argon?

*asked by Ryan on April 11, 2013* -
## ap chemistry

write a balanced equation if 18.0g go nitrogen gas reacts with excess oxygen gas at STP to form nitrogen dioxide gas

*asked by michelle e on May 2, 2017* -
## chemistry

A 28.4 L sample of methane gas is heated from 35.0 C to 76.0 C. The initial pressure of the gas is 1.00 atm at 35.0 C. Assuming constant volume, what is the final pressure of the gas

*asked by sandy on November 20, 2011* -
## Chemistry

An unknown amount of gas occupies 30.0 L at 2.1 atm and 298K. How many moles does the sample contain? What is the mass if the gas is helium? What is the mass if the gas is argon?

*asked by Ryan on April 12, 2013* -
## Chemistry

An unknown amount of gas occupies 30.0 L at 2.1 ATM and 298K. How many moles does the sample contain? What is the mass if the gas is helium? What is the mass if the gas is argon?

*asked by Jake on April 10, 2013* -
## chemistry

A gas has a volume of 5.60 at 0. What final temperature in degrees Celsius is needed to cause the volume of the gas to change to the following, if (number of moles of gas) and are not changed?

*asked by Anonymous on March 25, 2011* -
## AP Chemistry

We mix 193 grams of oxygen gas with 39 grams of argon gas in a volume of 1140 mL at 37C. What will be the final pressure of the gas mixture?

*asked by Anonymous on October 15, 2013* -
## chemistry

When 6 liter of nitrogen gas reacts with 18 liters of hydrogen gas at constant temperature and pressure, how many liters of ammonia gas will be produced?

*asked by braeden on April 19, 2015* -
## Math

The volume of a cylinder varies jointly as the height of the cylinder and the square of its radius. If the height is halved and the radius is doubled, determine the effect on the volume.

*asked by Andrea on February 27, 2018* -
## Math

The height of cylinder is deacrease at 0.3cm/s whereas its radius increase at the rate of 0.4cm/s.determine the rate of change of its volume if the radius and the height of the cylinder are 10 cm and 12 cm

*asked by Borhan on February 14, 2016* -
## chemistry

The density of pure copper is 8.96 at 20°C. If 6.50 g of pure copper pellets is added to a graduated cylinder containing 13.4 mL of water, to what volume level will the water in the cylinder rise

*asked by blake on September 12, 2014* -
## physics

Suppose 3 mols of neon (an ideal monatomic gas) at STP are compressed slowly and isothermally to 0.19 the original volume. The gas is then allowed to expand quickly and adiabatically back to its original volume. Find the highest temperature attained by the

*asked by david on January 26, 2011* -
## chem

Show work 1. How many moles of oxygen will occupy a volume of 2.50 liters at 121.6 kPa and 331 K? 2. An unknown volume of chlorine gas (Cl2) is resting at 127 °C at a of pressure 152.4 kPa. If the gas weighs 191.4 g, what is the volume? 3. A 2.917 mole

*asked by theresa on February 22, 2015* -
## chemistry

1. Ideal gas particles: A. have no mutual attraction and no individual volume. B. have no mass or volume. C. have no odor and no color. D. have no density and do not form bonds. Is it A? 2. Why does the density of gas in a hot air balloon decrease as the

*asked by Cortney on March 18, 2015* -
## Chemistry

Given that W = -PatmΔV, if a gas expands into a vacuum, the sign of W is ? 1. Positive: work is being done on the gas 2. Negative: work is being done on the gas 3. Positive: work is being done by the gas 4. Negative: work is being done by the gas 5. ZERO:

*asked by Melodie on June 22, 2016* -
## ap chemistry

We mix 146 grams of oxygen gas with 117 grams of argon gas in a volume of 436 mL at 58C. What will be the final pressure of the gas mixture? Answer in units of atm

*asked by cheri on February 10, 2013* -
## chemistry

Imagine there is a tank of unknown gas that contains 53.31% carbon, 35.51% oxygen, and 11.18% hydrogen by mass. At 35.0 °C and 0.470 bar, 2.0 L of the gas has a mass of 3.3 g. Using this information, answer the following questions. a.) What is the

*asked by A on September 27, 2014* -
## chemistry

A gas is compressed from an initial volume of 5.60 L to a final volume of 1.22 L by an external pressure of 1.00 atm. During the compression the gas releases 128 J of heat. What is the change in internal energy of the gas?

*asked by jesse on March 20, 2012* -
## chemistry

draw particle diagrams that account for the fact that 2 volumes of nitric oxide gas react with 1 volume of oxygen gas to form 2 volumes of product with no leftover gas

*asked by Paula on April 5, 2013* -
## chemistry

nitrogen gas reacts with hydrogen gas to form ammonia. The nitrogen gas is in a closed 500.0 mL flask at 751 mm HG connected to a 1.25 L flask containing the hydrogen gas at 1.21 atm pressure. Both flasks are kept at 37C. if the stopcock is opened and the

*asked by anonymous on April 10, 2013* -
## programming

Write a program reads the city names and respective gas prices into 2 single-subscripted arrays in your program - one of type string, the other of type double. (We would call these "parallel arrays" - each corresponding location shows the city name and gas

*asked by George on May 13, 2013* -
## Organic Chesmitry

The purpose of a gas trap in the Diels-Alder reaction set up is to A. Trap oxygen gas B. Trap the diels alder product C. Trap sulfur dioxide gas D. Trap carbon dioxide gas E. Trap nitrogen gas

*asked by nilee on March 6, 2009* -
## Physical Science

1. A silver bar 0.125 meter long is subjected to a temperature change from 200C to 100C. What will be the length of the bar after the temperature? A. 0.124764 meter (MY ANSWER) B. 0.00023635 meter C. 0.00002363 meter D. 0.0000189 meter 2. When the

*asked by Anonymous on September 26, 2011* -
## Chemistry

What volume of hydrogen chloride gas will result when hydrogen gas is combined with 58.35 liters of chlorine gas? I need help balancing the equation also.

*asked by doll on March 4, 2012* -
## physic II

Two liters of a perfect gas are at 0 degree C and 1 atm.If the gas is nitrogen, N2. Determine the number of moles? Determine the mass of the gas?

*asked by 34 on April 15, 2014* -
## Chemistry

Carbon disulphide reacts with oxygen gas to produce carbo dioxide gas and sulphur dioxide gas (balance)

*asked by Hina on June 7, 2017* -
## chemistry

Calculate the molar mass of a gas if 0.805g of this gas has a pressure of 4.00 bars at 305K in a 1 L. What is the gas density at this T and P, and what is the density at STP

*asked by john on September 11, 2009* -
## Chemistry

Write a balanced chemical equation for nitrogen gas reacts with oxygen gas to produce nitrogen dioxide gas

*asked by Elizabeth on March 30, 2010* -
## 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?

*asked by Tomi on November 4, 2012* -
## Physics

A clown at a birthday party has brought along a helium cylinder, with which he intends to fill balloons. When full, each balloon contains 0.036 m3 of helium at an absolute pressure of 1.2 x 10^5 Pa. The cylinder contains helium at an absolute pressure of

*asked by Mary on April 15, 2007* -
## Astronomy

For this question assume the moon is 110 of its diameter away from the Earth. The largest apparent size of Mercury that we ever see in the sky is 1/150 the apparent diameter of the Moon. The diameter of Mercury is about 4900 km. What is the closest that

*asked by Elisabeth on August 27, 2013* -
## geometry

Gasoline Containers Mark Russo has two right cylindrical containers for storing gasoline. One has a diameter of 10 in. and a height of 12 in. The other has a diameter of 12 in. and a height of 10 in. a. Which container holds the greater amount of

*asked by Nette on April 20, 2011* -
## chemistry

Got my as chemistry practical next week on OCR. Really stuck on it, don't know how to work out how the expected volume of CO2 is greater than that is obtained. Looked at the mark scheme ocr chemistry evalutative task specimen , but its not much help as it

*asked by anonymous on March 31, 2012* -
## Chemistry

Suppose that 2.3 L of gas at 35°C and 1.0 atm is expanded to 4.5 L at 42°C. What will the final pressure of the gas be? (Ti in Kelvins=308.15; Tf(K)=315.15) Can someone please show me how to plug the values into the Combined Gas Law formula to calculate

*asked by Pam on March 23, 2013* -
## maths-mensuration

The boy having a gold coin of diameter 2cm and thickess 2mm to a goldsmith for melting and drawing into a wire of diameter 1mm . the gold smith gave back a wire of gold of length 76cm with diameter 1mm. if the wastage allowed in melting could be a maximum

*asked by anoynomous on March 11, 2013* -
## calc (please help)

A wedge is cut from a right circular cylinder of radius r by two planes, one perpendicular to the axis of the cylinder and the other making an angle (beta) with the first. Find the volume of the wedge by slicing perpendicular to the y-axis. Please show all

*asked by beam on May 4, 2015* -
## Physics

Assume that 0.10 mol of argon gas is admitted to an evacuated 50 cm3 container at 20° C. The gas then undergoes isobaric heating to a temperature of 300° C. What is the final pressure of the gas? What is the final volume?

*asked by VW on August 5, 2012* -
## AP Chemistry

The rate of effusion of unknown gas X is found to be about 1.5 times that of SF6 gas (MW=146 g/mol) at the same conditions of temperature and pressure. What is the molecular weight of gas X? Answer in units of g/mol

*asked by Gabriella on February 17, 2014* -
## Chemistry

A sample of Kr gas has a volume of 465 mL at 286°C and 844 torr. When the gas is cooled by 38.3°C, its volume is reduced by 0.572 mL. What is the final pressure of the gas in kPa? the answer is supposed to be 105 but i keep getting 49.9!!!!!!

*asked by Matt on January 19, 2008* -
## physical science

imagine that you added helium gas to a partially inflated mylar ballon, and expanded as the gas was added. During this expansion process, do you think the pressure of the helium gas inside the ballon increased , decreased or remained fairly constant?

*asked by ashlee on October 16, 2007* -
## Physics

At a given temperature, what relationship appears to exist between a gas particle's mass and it speed? How does graph change as particle mass increase? Isra fills two identical balloons at identical temperatures. She fills one with O2 gas and the other

*asked by Alfrieda on July 19, 2012*