One kiliogram of steam expands isentropically from 2.0 MPa and 360 C to 90 C. find the final quality and the work for non- flow and steady flow process.

x₂ = 100%

W_n = 193.725 kJ

Step-by-step explanation

- Find first the Pressure for point 2. Use the Pressure-Temperature relation of Isentropic Expansion process. Substitute the given Pressure and Temperature at point 1 along with the given Temperature at point 2. You will get the Pressure at point 2.

- At the Pressure that we get along with the given Temperature of point 2, actual Temperature is greater than the Saturated Temperature. State is Superheated Steam. The dryness quality will be 100% since there is no longer any liquid.

- Use the formula of Non-flow Work of Isentropic Expansion. Substitute the given Mass and Temperatures along with the Gas Constant and Specific Ratio of Air.

You will get the Non-flow Work.

Please see the attached file for the complete solution