| The internal energy change when a system goes from state 'P' to 'Q' is 40 kJ/mole. |
| If the system goes from 'P' to 'Q' by a reversible path and returns to state 'P' by an irreversible path, what would be the net change in internal energy? |
A) \[40\text{ }kJ~\]
B) \[>40\text{ }kJ~~\]
C) \[<40\text{ }kJ~\]
D) zero
Correct Answer: D
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