When do you use w = -nRTlnV2/v1, q = nRTlnV2/V1, and w = -PdV?

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Michelle Song 1G
Posts: 30
Joined: Wed Nov 14, 2018 12:23 am

When do you use w = -nRTlnV2/v1, q = nRTlnV2/V1, and w = -PdV?

Postby Michelle Song 1G » Sat Feb 09, 2019 3:28 pm

I'm really confused when to use which equation.

RachelCheung1A
Posts: 30
Joined: Fri Sep 28, 2018 12:19 am

Re: When do you use w = -nRTlnV2/v1, q = nRTlnV2/V1, and w = -PdV?

Postby RachelCheung1A » Sat Feb 09, 2019 3:51 pm

Use w=nRTlnV2/V1 when solving for work done by a reversible, isothermal gas expansion process with Volume change. Use w=-PdV for irreversible gas work. q is for heat transferred but I think that specific equation is not frequently used.


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