Pakistan's Largest MCQs Website — NTS, FPSC, PPSC, BPSC, SPSC Tests

🏭

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

Aits internal energy (U) decreases and its entropy (S) increases
U and S both decreases
CU decreases but S is constant
DU is constant but S decreases

Correct Answer: B. U and S both decreases

Related Questions