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

The work done can be represented by the shaded area in fig Q8(a)

Calculate the work done, in joules, when an amount of steam expands, following the law PV^1.3 = C, from a volume of 0.25 m³ at a pressure of 820 kN/m² to a volume of 0.6m³. (12)