Determine the enthalpy change for each of the two processes

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Reference no: EM13709204

1. Water at 40 kPa and 70°C goes through an isentropic compression which raises its pressure to 3 MPa. Then at constant pressure it is superheated 200°C. Determine the enthalpy change for each of the two processes.

2. A closed, rigid 0.2 cubic meter tank contains 0.25 kg of carbon dioxide at a pressure of 50 kPa. Determine the change in internal energy and entropy if the pressure increases to 250 kPa.

3. Water at 0.5 MPa and 250 ° C is contained in a cylinder-piston configuration. If the water is expanded in an isentropic process to 0.1 M Pa, determine the change in internal energy.

Reference no: EM13709204

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