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Q1. A gas at a pressure of 2 bar and temperature of 27℃ has a specific volume of 0.396 m³/kg. The gas undergoes isentropic compression until the temperature is 604.2℃.

The volume compression ratio is 16 : 1.

It is then heated at constant pressure until the specific volume is 0.03885 m³/kg.

(a) Sketch the processes on Pressure- Volume and Temperature-specific entropy diagrams. (2)

(b) Calculate EACH of the following:

(i) The specific heats at constant pressure and constant volume; (4)

(ii) The net specific work transfer; (4)

(iii) The overall change in specific internal energy;(3)

(iv) The overall change in specific entropy. (3)