An ideal air-standard dual cycle consisting of the following five internally reversible processes. Process 1-2: Adiabatic compression Process 2-3: Constant volume energy addition by heat transfer Process 3-4: Constant pressure energy addition by heat transfer Process 4-5: Adiabatic expansion Process 5-1: Constant volume energy rejection by heat transfer Data at various states in the cycle is provided in the table below. State P, kPa T, K u, kJ/kg h, kJ/kg 1 214.1 300.1 95 300 4372.8 862.5 2 643.5 891 3 9125.9 1800 1486 2003 4 9125.9 1980 1658.8 2227.2 5 266 840 624.9 866 Consider variable properties for air. Molecular weight of air = 28.97 kg/kmol. (a) Find the compression ratio and cut-off ratio of the cycle. (b) Calculate the specific heat transfer during the energy addition and energy rejection processes, in kJ/kg. (c) Determine the thermal efficiency of the cycle using values in (b), in %. (d) Find the mean effective pressure for the cycle, in kPa. (e) Show the cycle on P-v and T-s diagrams and the appropriate lines of constant temperature and lines of constant pressure for the five states. Label states and identify process directions with arrows.