9. Consider an ideal diesel cycle with compression ratio 20 and cut-off ratio 4. The maximum volume is5L. The air is at a temperature of 18 Cand pressure of 110kPa before the iso entropic compression. Compute: (i) the displacement volume; (ii) the mass of air involved in the cycle; (iii) the volume, pressure and temperature at the beginning and end of the iso entropic expansion; (iv) the net work produced from one cycle; and (v) the thermal efficiency of the cycle. Throughout the cycle, consider the working fluid to be air, a diatomic gas with individual gas constant R = 287 kgk.