An engine which uses a diatomic ideal gas (my = BR/2, cmp = TR/2) undergoes the cyclical pro- 10 cess shown. The temperature at point 1 is 20 C. Watch out for conversions! 1cm = 10~%m3. 051 1 3 0 Viem) 0 10 20 30 40 (a) (8 pts) For each of the three steps, 1 2, 2 = 3 and 3 1. calculate the heat added to (or removed from) the gas and the work done by the gas. Also calculate the internal energy of the gas, U; and U;. Display your results in the tables shown in units of Joules; show all work leading to these values. Use the next (blank) age if necessary. (b) Determine the efficiency of this engine