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

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
by

1 Answer

Answer :

(B) U and S both decreases
by

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