The internal energy change when a system goes from A to B is 60 kJ mol-1. If the system goes from A to B by a reversible path and returns to state A by an irreversible path, what would be the net change in internal energy?

Question

The internal energy change when a system goes from A to B is 60 kJ mol-1. If the system goes from A to B by a reversible path and returns to state A by an irreversible path, what would be the net change in internal energy? (A) Zero (B) 60 kJ (C) >60 kJ (D) -60 kJ

Tardigrade Admin · Accepted Answer

Internal energy is a state function.

Q. The internal energy change when a system goes from A to B is 60 kJ mol−1. If the system goes from A to B by a reversible path and returns to state A by an irreversible path, what would be the net change in internal energy?

Zero

60 kJ

>60 kJ

-60 kJ

Internal energy is a state function.

Q. The internal energy change when a system goes from A to B is 60 kJ $m o l^{- 1}$ . If the system goes from A to B by a reversible path and returns to state A by an irreversible path, what would be the net change in internal energy?