An engine using 1 mol of an ideal gas ini-tially at 16.1 L and 325 K performs a cycleconsisting of four steps:1) an isothermal expansion at 325 K from16.1 L to 31.5 L;2) cooling at constant volume to 163 K;3) an isothermal compression to its originalvolume of 16.1 L; and4) heating at constant volume to its originaltemperature of 325 K.Find its efficiency. Assume that theheat capacity is 21 J/K and the univer-sal gas constant is 0.08206 L atm/mol/K8.314 J/mol/K.

Efficiencyη is given by:η=WQwhere, W is workdone and Q is Heat energy

Answered: An engine using 1 mol of an ideal gas…

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