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Chemical Engineering Mcqs

A closed system is cooled reversibly from 100°C to 50°C. If no work is done on the system________________?

 (A)  its internal energy (U) decreases and its entropy (S) increases

 (B)  U and S both decreases

 (C)  U decreases but S is constant

 (D)  U is constant but S decreases

Submitted By :Ali Uppal

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