Thermodynamics for Chemical Mcqs

Q.  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


ANSWER: See Answer
 
No explanation is available for this question!
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