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Q8. a. The work done during an adiabatic expansion follows the law PVⁿ = C, where C and n are constant, as the volume increases from V₁ to V₂.

The work done represented by the area in Fig Q8(a).

An amount of steam expands so as to the law PV^1.13 = C.

Calculate the work done, in Joules , when the steam expands from a volume of 0.2 m³ at a pressure of 850 kN/m² to a volume of O.5m³.(12)