Sketch on a T - s diagram the following cycle for a gas turbine:
(a) Isentropic compression
(b) Heat taken in at constant pressure p1
(c) Isentropic expansion through turbine 1 from pressure p1 down to intermediate pressure p3
(d) Reheat at pressure p3
(e) Isentropic expansion from pressure p2, through turbine 2, down to final pressure.