June 17, 2024, 10:21:46 AM
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Topic: Work and constant volume????  (Read 3912 times)

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Offline unleash10

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Work and constant volume????
« on: October 10, 2007, 08:56:17 PM »
I was wondering why cant we have a situation where the equation for work as w = change in P times constant volume.
EG we have a piston with a changing external pressure being applied but the volume is not changing because the work from the system is adjusting to the change in external pressure.

Offline Yggdrasil

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Re: Work and constant volume????
« Reply #1 on: October 10, 2007, 10:21:47 PM »
Mechanical work cannot be done without there being motion.  If volume doesn't change, then there is no macroscopic motion causing mechanical work do be done on the system.

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