Air flows through a pipe of diameter 16cm at the rate of 2.4kg/s. It has a pressure of 8 bar and temperature of 95oC before it is throttled to 3.6 bar.
(a) Find the velocity of the air down stream of the restriction.
(b) Show that the enthalpy is essentially the same before and after the throttling process.
(c) Find the change in entropy
