A mass of air is initially at 2600C and 700Kpa and occupies 0.028m3 . The air is expanded at constant pressure

A mass of air is initially at 2600C and 700Kpa and occupies 0.028m3 . The air is expanded at constant pressure

Subject: Engineering    / Cellular Engineering
Question
A mass of air is initially at 2600C and 700Kpa and occupies 0.028m3 . The air is expanded at constant pressure to 0.084m3. A polytropic process with n = 1.5 is then carried out, following by constant temperature process all process are reversible (a) Sketch the cycle pV& Ts planes. (b) Find the heat received and rejected in the cycle. (c) Find the efficiency of cycle.