Two lbm of ammonia is contained in a well insulated piston-cylinderassembly fitt

Question

Two lbm of ammonia is contained in a well insulated piston-cylinderassembly fitted with an electrical resistor of negligible mass. Theammonia is initially at 20 lbf/in2 and a quality of 80%. Theresistor is activated until the volume of the ammonia increases by25%, while its pressure varies negligibly. Determine, in Btu:
1. The amount of energy transfer by electrical work and theaccompanying energy transfer.
2. The amount of energy transfer by work to the piston and theaccompanying energy transfer.
3. The change in exergy of the ammonia.
4. The amount of exergy destruction.

1. The amount of energy transfer by electrical work and theaccompanying energy transfer.
2. The amount of energy transfer by work to the piston and theaccompanying energy transfer.
3. The change in exergy of the ammonia.
4. The amount of exergy destruction.

Explanation / Answer

Can someone help me please?

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