An ideal gas is made to undergo the cyclic process shown below. There are three steps in the cycle: an isothermal expansion from A to B, an isobaric compression from B to C, and an increase in pressure at constant volume from C to A. The cycle is carried out on 0.75mol of an ideal diatomic gas with PA = 3.2 × 103 Pa, VA = 0.21m3, and PB = 1.2 × 103 Pa. (1) For each of the steps and for the entire cycle, calculate the work done on the gas, the heat added to the gas, and ∆U. (2) What does this process accomplish? (3) How would the results in (1) and (2) change if the cycle was carried out in the opposite direction?