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[" The internal energy change when a system goes from state "A" to "B" is "40kJ/" mol.If the system "],[" goes from "A" to "B" by a reversible path and returns to state "A" by an irreversible path,the net "],[" change in internal energy is "],[[" A) "<40kJ," B) zero "," C) "40kJ," D) ">40kJ]]

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The internal energy change when a system goes fromk state A to B is 40 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?

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