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What would happen to the gas volume of the cylinder if you were to increase the amount of gas by 4 times while holding the temp and pressure constant?

2006-12-22 13:01:54 · 6 answers · asked by Anonymous in Science & Mathematics Chemistry

6 answers

The volume would increase, thus moving the piston up. If you add gas to the system, you would have to make room for it. Otherwise, the temperature increases. Have you ever sprayed something out of an aerosol can and noticed that the can gets cold when you spray a lot out? That's the exact opposite effect. You are removing gas. But since there's no piston, the loss of pressure results in a loss in temperature.

2006-12-22 13:03:26 · answer #1 · answered by yodadoe 4 · 0 0

The volume would increase 4 times. Of course! But if the piston were at top dead center, then it would move towards the bottom of the cylinder. If it started out at the bottom of it's stroke, it would not move, but the pressure would increase as the volume increased and so would the temp. The only way to achieve this result is to increase the volume while manually moving the piston. If you increase the volume until the piston moves on it's own, you also increase the temp and the pressure. There would just naturally have to be some friction involved due to the fact that the piston would have to have some sort of seal around it. (IE, piston rings of some kind.) I hope that this is of some help to you!

2006-12-22 21:19:36 · answer #2 · answered by It All Matters.~☺♥ 6 · 1 0

The gas law:

PV/T sums this up neatly

The pressure P and the temperature T are not chaning but the mass is. So because the volume V is on the top line the volume will get bigger (assuming you can keep both pressure and temperature at a constant).

2006-12-22 21:39:03 · answer #3 · answered by Anonymous · 0 0

Depends on the size of the cylinder, piston face, and shaft piston is attached to, and original volume of initial gas charge.

But adding 4 times the amt of gas would definitely increase volume

Area of piston (3.14 * Radii squared)

V - Volume of Cylinder = Area of Piston * Length of cylinder
G - Volume of initial gas in cubic inches or cc's

If You had a cylinder that a total volume of 31.4 inches
Then retracted cylinder and filled it w/ 7.85 cubic inches of gas would only fill cyl 1/4 full

Cyl Volume = Piston w/ radius of 1 in. * 3.14 = Area of 3.14 inches squared. Then Multiplied by a length of 10 inches. That would equal a volume of 31.4 inches cubed. Then 1/4 of that is 7.85 inches cubed.

So if you increased the gas volume by 4 times you would have filled the 31.4 inch cubed cylinder.

Sorry it's reversed but I found this easier to understand while studying for pnuematics course.

2006-12-22 21:21:20 · answer #4 · answered by jbdossjr 2 · 0 0

vol would ^ by factor of 4

2006-12-22 21:04:05 · answer #5 · answered by Anonymous · 0 0

It would run rich on fuel & puff out black smoke

2006-12-22 21:03:44 · answer #6 · answered by The Git! 3 · 0 1

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