In an isentropic nozzle the specific flow energy (j) and entropy (s) remain constant along the flow.

Question:

In an isentropic nozzle the specific flow energy (j) and entropy (s) remain constant along the flow. Superheated steam flows steadily through an isentropic nozzle for which the following properties are known at the inlet and exit ports. Inlet: p = 200 kPa, T = 400oC, A = 100 cm2, V = 5 m/s; Exit: p = 100 kPa. Determine
(a) The exit velocity (V2).
(b) The exit temperature (T2).
(c) The exit area.