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April 1, 2015

Posted by **frank fred** on Wednesday, March 21, 2012 at 12:28pm.

- physics -
**drwls**, Wednesday, March 21, 2012 at 4:06pmAt constant temperature, P*V = constant and

P dV = - V dP = -nRT/P*dP

Work done is therefore

Integral P dV = -(nRT) dP/P

= (-nRT) ln P2/P1

= nRT*ln(P1/P2)

= 2.0 moles*RT*ln5

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