Compression and Work, Heat  [ENDORSED]

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Raj Susarla 3I
Posts: 28
Joined: Wed Sep 21, 2016 2:56 pm

Compression and Work, Heat

Postby Raj Susarla 3I » Fri Jan 20, 2017 2:59 am

Just wondering if someone could explain exactly why compression increases the internal energy of the system, and how work and heat are both affected when compression occurs.

vsyacoubian2A
Posts: 63
Joined: Fri Jul 22, 2016 3:00 am

Re: Compression and Work, Heat  [ENDORSED]

Postby vsyacoubian2A » Fri Jan 20, 2017 7:10 am

Compression means work is being done on the system. Since the system is not exerting energy to do work and is getting free work, the value for work is positive. In the formula U=q+w, w is positive. If q is constant, you can say that the system gains energy. Work is affected by compression.


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