A piston-cylinder device contains 2 kg of water at 5 MPa and 100 °C. Heat is add

Question

A piston-cylinder device contains 2 kg of water at 5 MPa and 100 °C. Heat is added from a reservoir at 700 °C to the water until the water reaches a temperature of 700 °C as well (thermal equilibrium).

a) Determine the work done by the piston-cylinder device.

b) Determine the heat transferred during this process. Clearly indicate the direction

of heat transfer.

c) Determine the total entropy generated during this process.

d) Draw the process on a Pressure-Volume and Temperature-Entropy diagram with

respect to the saturation lines.

Explanation / Answer

A piston-cylinder device contains 2 kg of water at 5 MPa and 100 °C. Heat is add

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