Find the total work and the heat transfer from the ambient

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Reference no: EM131233587

1. Air in a piston/cylinder arrangement is at 110 kPa, 25?C, with a volume of 50 L. It goes through a reversible polytropic process to a final state of 700 kPa, 500 K and exchanges heat with the ambient at 25?C through a reversible device. Find the total work (including that of the external device) and the heat transfer from the ambient.

2. A rigid container with a volume of 200 L is divided into two equal volumes by a partition. Both sides contain nitrogen; one side is at 2 MPa, 300?C and the other is at 1 MPa, 50?C. The partition ruptures, and the nitrogen comes to a uniform state at 100?C. Assuming the surroundings are at 25?C, find the actual heat transfer and the irreversibility in the process.

Reference no: EM131233587

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