Steam enters a nozzle at 4 MPa and 640C with a velocity of 20 m/s. This process

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Steam enters a nozzle at 4 MPa and 640°C with a velocity of 20 m/s. This process may be considered reversible and adiabatic. The nozzle exit pressure is 0.1 MPa.

(a) Draw a sketch of this process. Include all known information.

(b) What is the entropy change of the steam?

(c) What is the exit temperature?

(d) What is the exit velocity?

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