In an engine working on diesel cycle, inlet pressure and temperature are 1 bar and \(20^{\circ} \mathrm{C}\). Pressure at the end of adiabatic compression is 40 bar. The ratio of expansion after constant pressure heat addition is 5. Calculate the heat supplied, heat rejected and the efficiency of the cycle. Assume \(c_{p}=1.004 \mathrm{~kJ} / \mathrm{kg} \cdot \mathrm{K}\) and \(c_{v}=0.717 \mathrm{~kJ} / \mathrm{kg} . \mathrm{K}\).