\(0.15 \mathrm{~m}^{3}\) of air at a pressure of \(900 \mathrm{kPa}\) and \(300^{\circ} \mathrm{C}\) is expanded at constant pressure to three times its initial volume, It is expanded polytropically following the law \(\mathrm{PV}^{1.5}=\mathrm{C}\) and finally compressed back to initial state isothermally. Calculate heat received, heat rejected, efficiency of the cycle.