please answers with some explaination

Figure Q1 below shows the cycle followed by one mole of a perfect gas. Assuming each process is carried out reversibly: a) Name each process and calculate the pressure at each state (10 marks) b) Write down the expression of the heat flow q, work done, w, and the change in internal energy, AU, and entropy change AS, for each process. (15 marks) c) Calculate q, w, AU and As for the complete cycle. (20 marks) Figure Q1 67.2 3 3 44.8 A V/Litres 22.4 1 N B 0 0 273 546 819 T/K