5. A Carnot engine operates on air between high and low pressure of 3 MPa and 100 kPa with a low temperature of 20 degree C For a compression ratio of 15, calculate the thermal efficiency, the MEP, and the work output.

For each of the following process: a) sketch the p-v diagram, b)sketch t-s diagram, c) sketch t-v diagram, d) sketch the boundary work on one of the diagrams (a, b or c) and e) sketch the reversible heat transfer on one of the diagrams (a, b or c): 1- isobaric process from compressed liquid to superheated vapor 2- isothermal process from compressed liquid to superheated vapor 3- isentropic process from compressed liquid to superheated vapor