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### Reversible Expansion

Posted: Wed Jan 30, 2019 8:04 pm
What exactly is reversible expansion? Also, how would you calculate the work of a gas that is reversibly expanding?

### Re: Reversible Expansion

Posted: Thu Jan 31, 2019 1:04 pm
The equation we use is :
A reversible process is a process whose direction can be "reversed" by inducing infinitesimal changes to some property of the system via its surroundings.

### Re: Reversible Expansion

Posted: Fri Feb 01, 2019 12:19 pm
For example, the volume of the gas inside the container would not be fixed. It would increase/decrease depending on the pressure. We calculate the work of reversible expansion by using integral since the pressure keeps changing. The final equation would be w=-nRTln(V2/V1).

### Re: Reversible Expansion

Posted: Fri Feb 01, 2019 12:21 pm
Something else to note is that this equation is only used when temperature is constant, because all the other q equations involve a delta T, whereas this one is just T by itself.