A gas initially at 630 K expands until its volume is 5.2 times the initial volume according to pvn = C. if initial and final pressures are observed to be 8.5 bar and 1 bar. Determine (i) index of expansion (ii) work done per kg of gas (iii) heat exchange per kg of gas. Assume Cv = 0.712 kJ/kg-K and γ = 1.4.
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