Thermodynamics
Air at 3.5 MPa and 500°C is expanded in an adiabatic gas turbineto 0.2 MPa. Assume that the process is reversible. Changes in KEand PE may be neglected and the average temperature of the gases is550 K.
(a) Create a schematic representation of the equipment. (b)Represent the process on a T-s diagram. (c) Determine thepolytropic exponent. (d) Determine the change in entropy for thisexpansion process