2.2. A sample of a diatomic ideal gas has pressure P and volume V. When the gas is warmed, its pressure triple, volume triple, pressure doubles, and volume doubles. This warming process includes 4 steps, the 1st at constant pressure, the 2nd at constant volume, the 3rd at constant pressure, and the 4th at constant volume. 2.2.1. Draw the PV function showing all 4 processes and label the temperature corresponding to each process. [4] 2.2.2. Determine the amount of energy transferred to the gas by heat in terms of P and V. [For "diatomic ideal gas" to has C = (5/2)R and Cp = (7/2)R] [4]