Van't Hoff Equation


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Vanessa Rojas 4F
Posts: 15
Joined: Wed Feb 20, 2019 12:17 am

Van't Hoff Equation

Postby Vanessa Rojas 4F » Sat Feb 15, 2020 9:12 pm

In Van't Hoff Equation why is entropy only over the R constant and not temperature as well?
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Daria Azizad 1K
Posts: 116
Joined: Thu Jul 25, 2019 12:15 am

Re: Van't Hoff Equation

Postby Daria Azizad 1K » Sat Feb 15, 2020 9:42 pm

The T cancels because it is in both numerator and denominator
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Alice Ma 2K
Posts: 52
Joined: Wed Nov 13, 2019 12:26 am

Re: Van't Hoff Equation

Postby Alice Ma 2K » Sun Feb 16, 2020 12:25 am

The temperature cancels out in the equation.
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preyasikumar_2L
Posts: 101
Joined: Fri Aug 09, 2019 12:17 am

Re: Van't Hoff Equation

Postby preyasikumar_2L » Sun Feb 16, 2020 12:35 am

The temperature gets cancelled out:

ΔG = ΔH − TΔS = -RTlnK

lnK = (ΔH − TΔS)/(-RT) = ΔH/(-RT) − TΔS/(-RT) = -ΔH/(RT) + ΔS/R
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Rodrigo2J
Posts: 102
Joined: Sat Jul 20, 2019 12:16 am

Re: Van't Hoff Equation

Postby Rodrigo2J » Sun Feb 16, 2020 1:01 am

If you do the algebra, you'll see that T cancels out.
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