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Suppose that 32.7 J of heat is added to an ideal gas. The gas expands at a constant pressure of 1.45 104 Pa while changing its volume from 3.12 10-4 to 7.55 10-4 m3. The gas is not monatomic, so the relation does not apply. (a) Determine the change in the internal energy of the gas. Answer...

A Carnot engine has an efficiency of 0.740, and the temperature of its cold reservoir is 370 K. (a) Determine the temperature of its hot reservoir. Answer_________K (b) If 5180 J of heat is rejected to the cold reservoir, what amount of heat is put into the engine? Answer_________J