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1. A heat engine contains an ideal monatomic gas confined to a cylinder by a movable piston. The gas starts at A, where T=-3x10² K. The process B S C is an isothermal expansion. (a) Find the number n of moles of gas and the temperature at B. (b) Find Du, Q, and W for the isovolumetric process A S B (c) Repeat for the isothermal process BSC. (d) Repeat for the isobaric process C S A. (e) Find the net change in the internal energy for the complete cycle. efficiency, and net work on the environment performed by the engine.. (1) Find the thermal energy Qh transferred into the syste n, the thermal energy rejected, Qc, the thermal