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I am trying to derive a formula for entropy. I have:

dS= Cv/T dT + R/(V-b) dV

and want to get:

S= Cv*ln(T) + R*ln(V-b) + constant.

Math rules seem to say i cant just integrate this up even though it looks obvious since i have two different d's on the right hand side. Maybe something using Maxwell relations? Not sure.

Thank you for any help!

olechka

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# Thermo Derivation

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