Two idential, finite sized bodies of constant volume and constant heat capacity are used to drive a heat engine- heat is taken from the hot (Th) body, work is done, and heat is ejected to the cold (Tc) body. Both bodies wind up at Tf(adsbygoogle = window.adsbygoogle || []).push({});

(a) What is the change in the entropy of the system?

(b) What is the maximum amount of work that can be done?

Relevant equations

U=CvT

Cv is not time dependent

(a) I got ΔS=nCv*ln(Th/Tc)

(b) No idea where to start, any help would be great!

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# Homework Help: Entropy and Maximum work for two idential, finite sized bodies

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