Two engineers A and B are given identical samples of 1 kg air at 100 kPa...

Two engineers A and B are given identical samples of 1 kg air at 100 kPa pressure and 300 K temperature. They are both asked to compress the air in order to raise the pressure to 800 kPa and reduce the volume to one-fifth of the initial volume. Engineer A chooses to compress the air isothermally until the pressure reaches 500 kPa, and then further increase the gas pressure in an isochoric process until the desired pressure is reached. On the other hand, Engineer B chooses to increase the gas pressure isochorically until the pressure reaches 800 kPa, and then reduce the volume at constant pressure in order to reach the desired final state. (a) On a p-V diagram, please show the processes followed by Engineers A and B. (b) Please calculate the work done, heat transferred and change in internal energy for the processes followed by Engineers A and B. Please record your answers in the following Table. For heat transferred, please specify the direction of heat transfer, and for work done, please specify whether work was done on or by the gas.

Expert Solution

genius_generous answered 2 years ago

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