Engineering, 06.05.2020 03:26 dessssimartinez6780

One kilogram of propane initially at 8 bar and 50 ℃ undergoes a process to 3 bar, 20 ℃ while being rapidly expanded in a piston-cylinder assembly. Heat transfer between the propane and its surroundings occurs at an average temperature of 35 ℃. The work done by the propane is measured as 42.4 kJ. Kinetic and potential energy effects can be ignored. Determine the amount of entropy produced or destroyed and whether it is possible for the work measurement to be correct.

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One kilogram of propane initially at 8 bar and 50 ℃ undergoes a process to 3 bar, 20 ℃ while being r...