One mole of a monoatomic ideal gas initially at 300 0K is heated to 500 0K. a) Calculate the change in entropy if the volume is constant. b) Calculate the change in entropy if the pressure is constant. c) If 1 mol of the gas undergoes the same temperature change, what must the change in volume be so that the total change in entropy is equal to zero? Express the change in volume as the ratio V2/V1 or as ΔV = V2 − V1.

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