Two and a half kg of an ideal gas with R = 296.9 J/(kg)(K) and cv = 0.7442 KJ/(kg)(K) at a pressure of 827.4 kPa and a temperature of 667 ̊C reject 132.2 kJ of heat at constant pressure. The gas is then expanded according to pV1.25 = C to a point where a constant volume process will bring the gas back to its original state. Determine P3 , QA , and the power in kW for 100 Hz.

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Laws of thermodynamics

Thermodynamics is a field of research, which needs the creation of absolute and ideal states and logical and practical examination of the actual conditions. By considering all the laws and theories of thermodynamics, the chemical reactions, the occurrence of processes, and physiological functions can be predicted with this field.