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Question: a gas expands in a pistoncylinder assembly from 1 ...

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A gas expands in a piston-cylinder assembly from 𝑝1 = 8.2 𝑏ar and = 0.014 π‘š^3 to 𝑝𝑝1 = 3.5 𝑏aπ‘Ÿ in a process during which the relation between the pressure and volume is 𝑝 βˆ™π‘‰^1.2 = 𝑐. The mass of the gas is 0.185 kg. If the specific internal energy of the gas decreases by 29.8 kJ/kg during the process, determine the heat transfer in kJ. Kinetic and potential energy changes are negligible.

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