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1.00 mole of hydrogen (H2) is initially in state 1 of pressure p1 and volume V1....

1.00 mole of hydrogen (H2) is initially in state 1 of pressure p1 and volume V1. The gas expands isothermally to state 2 in which its volume is V2 = 3 V1, followed by an isobaric compression to volume V1. Finally, the gas returns to the initial state via an isochoric process. Calculate the efficiency of a heat engine that would function according to this cycle.

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