Question

Ideal gas is taken through the process shown in the figure –

• A. In process AB, work done by system is positive
• B. In process AB, heat is rejected
• C. In process AB, internal energy increases
• D. In process AB internal energy decreases and in process BC, internal energy increases

Answer 1

Answer: (B)

In process AB, heat is rejected

Answer 2

In process AB temperature is constant and P increases

\volume decrease

So work done by the system is –ve.

DU = 0

\ Q is –ve