The temperature of 5.85 moles of a monatomic gas decreases from T1 to T2 during a reversible isovolumetric process. It then undergoes a reversible adiabatic compression until its temperature increases to the original value of T1, while its volume decreases to 1/6 its original volume. What is the total change in entropy? The molar specific heat of the gas at constant volume is 12.5 J/(mol · K). (Assume gamma = 5/3.)

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Q: The

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