GIVEN: Closed system (air filled piston-cylinder device)P1 = 100 bar, T1 = 400deg C, P2 = 10 bar, T2 = 100deg C,
CASE 1: air first undergoes a constant VOLUME process (to 10 bar), then undergoes by a constant PRESSURE process (to 100deg C).
CASE 2: first undergoes constant PRESSURE process, followed by constant VOLUME process. FIND: air specific volume at initial, final, and both intermediate states.