Problem 2.7. Compute the efficiency of the heat engine shown in Fig. 2.19. The engine uses a

Question:

Problem 2.7. Compute the efficiency of the heat engine shown in Fig. 2.19. The engine uses a rubber band whose equation of state is J = aLT, where a is a constant, J is the tension, L is the length per unit mass, and T is the temperature in Kelvins. The specific heat (heat capacity per unit mass) is a constant, c = c.

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