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September 1, 2014

Homework Help: Physics

Posted by Lizzie on Sunday, August 14, 2011 at 8:15pm.

Some hydrogen gas is enclosed within a chamber being held at 200C with a volume of 0.025m^3. The chamber is fitted with a movable piston. Initially, the pressure in the gas is 1.50*10^6 Pa (14.8 atm). The piston is slowly extracted until the pressure in the gas falls to 0.95 * 10^6 Pa. What is the final volume V_2 of the container? Assume that no gas escapes and that the temperature remains at 200C.

How do you set this up? I know you use pV=nRT but the double pressure thing kinda throws me off

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