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In: Mechanical Engineering

0.5 kg of a gas at temperature t1=20?C and pressure p1=0.1 MPa was contained in a...

0.5 kg of a gas at temperature t1=20?C and pressure p1=0.1 MPa was contained in a cylinder with a piston. The gas was compressed (polytropic process) and a ratio of heat exchanged during the process to the work of compression was ¼. Find the final temperature and pressure of the gas if 15 KJ of heat was transferred to the surroundings. Specific heats at constant volume and pressure were 654.67 J/Kg/K and 897.64 J/kg/K, respectively.

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