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Consider n moles of an ideal monatomic gas being taken once through the Carnot cycle of...

Consider n moles of an ideal monatomic gas being taken once through the Carnot cycle of a thermal engine (motor), consisting of two isothermal processes 1-2, 3-4 at temperatures T1 = 400K and T2 = 300K and two adiabatic processes 2-3 and 4-1. Suppose that all processes are reversible.

  1. a) Sketch the graph of the cycle in P-V diagram.

  2. b) Calculate the heats of the processes 1-2, 3-4.

  3. c) Prove that the efficiency of the engine depends only on the temperature T1 and T2 and calculate

it.
d) Calculate the entropy difference of all processes.

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