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Q1) A gas in a cylinder is heated at constant volume from a temperature of 387℃ to 568℃ and then further heated at constant pressure to 827℃.

The change in specific entropy in the first process is 0.182  kJ/kgK.

After the heating processes the gas expands isentropically to 10 times V1 and a temperature of 17℃.

(a) Sketch PV and Ts diagrams to show the process; (2)

(b) Calculate EACH of the following:

(i) C_V, C_P and ɣ; (9)

(ii) the change is specific entropy in the constant pressure process; (2)

(iii) the specific work in the isentropic process. (3)