1. Tardigrade
  2. Question
  3. Chemistry
  4. The internal energy change when a system goes from state A to B is 40 k J / mol. 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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Q. The internal energy change when a system goes from state $A$ to $B$ is $40 \,k J / mol$. 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?

AIEEEAIEEE 2003Thermodynamics

Solution:

$\Delta E=0,$ in a cyclic process.