Thermodynamics for W


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Guillermo Vega 1H
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Joined: Wed Nov 18, 2015 3:00 am

Thermodynamics for W

Postby Guillermo Vega 1H » Sat Mar 18, 2017 1:13 am

I don't really understand when we should compute with the formula w=-nRTln(V2/V1). Is this for only isothermal expansions or are there other situations in which we can use the formula?
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ntruong2H
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Re: Thermodynamics for W

Postby ntruong2H » Sat Mar 18, 2017 1:14 am

Guillermo Vega 1H wrote:I don't really understand when we should compute with the formula w=-nRTln(V2/V1). Is this for only isothermal expansions or are there other situations in which we can use the formula?


Use this formula when pressure is not constant.
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Manasvi Paudel 1A
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Re: Thermodynamics for W

Postby Manasvi Paudel 1A » Sun Jan 28, 2018 6:25 pm

You use that equation when pressure is not constant. -PdeltaV is used when pressure is constant.
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Ozhen Atoyan 1F
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Re: Thermodynamics for W

Postby Ozhen Atoyan 1F » Sun Jan 28, 2018 7:27 pm

To add onto the previous post, I believe you utilize this equation only when you have an isothermal reversible expansion.
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