Question

The internal energy of the system decreases in an adiabatic process. Which of the following must be true regarding this process?
A. Heat flows out of the system
B. Work is done by the system
C. Work is done on the system
D the potential energy of the system is changing

Right answer is B.

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Answer 1

Explanation:

then why you put it as question...........

Answer 2

Answer:

B. Work is done by the system