The internal energy change when a system goes from state A to B is a0 kl/mol. If the system goes from A to B by an irreversible path and returns to state A by an irreversible path, the net change in internal energy is:
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a
< 40 kJ
b
zero
c
40 kJ
d
> 40 kJ
answer is B.
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Detailed Solution
In cyclic process net change in internal energy is zero.