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  3. 0.5 kg of air at t1 = 327 0c and the specific volu

0.5 Kg of air at t1 = 327 0C and the specific volume v1 = 0.2...

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Mechanical Engineering

0.5 Kg of air at t1 = 327 0C and the specific volumev1 = 0.2 m3/Kg is enclosed in a cylinder under a piston.The gas slowly expands with no friction to the temperature t2 = 00C and the specific volume v2 =0.65 m3/Kg(polytrophic process). Find the work and heat of the process andchange in internal energy of gas. Determine the initial and finalpressure of the gas. The isentropic exponent and particular gasconstant for air are equal to k=1.4 and R=287 J/KgK,respectively.

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