In an ideal duel cycle, the compression ratio is 12 and maximum pressure is limited to \(80 \mathrm{bar}\). If the heat supplied is \(2,000 \mathrm{~kJ} / \mathrm{kg}\), find the temperature and pressure at all cordinal points and the cycle efficiency. The pressure and temperature of air at the commencement of compression are 1 bar and \(90^{\circ} \mathrm{C}\), respectively. Assume \(C_{\mathrm{p}}=1.005\) \(\mathrm{kJ} / \mathrm{kgK}\) and \(C_{\mathrm{v}}=0.717 \mathrm{~kJ} / \mathrm{kgK}\) of air.