A piston–cylinder assembly contains propane, initially at 27°C, 1 bar, and a volume of 0.2 m3. The propane undergoes a process t

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A piston–cylinder assembly contains propane, initially at 27°C, 1 bar, and a volume of 0.2 m3. The propane undergoes a process t

o a final pressure of 4 bar, during which the pressure–volume relationship is pV1.1 = constant. For the propane, evaluate the work and heat transfer, each in kJ. Kinetic and potential energy effects can be ignored.

Engineering

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Viktor [391] · Answer 1 · 2026-04-02T12:28:33+03:00

The work completed is -19.7 KJ, and the heat transferred amounts to 17.4 KJ. Given the temperature is 27°C and the volume is 0.2 m³, with pressure shifting from 1 bar to 4 bar, we recognize the equation pV¹°¹ is a constant. From the superheated propane table, the corresponding specific volume and internal energy values at initial conditions allow us to assess the work and heat transfer between state changes.