4. 0.50 moles of an ideal diatomic gas initially at Pi = ?, Vi = 0.0125 m3, and Ti = -15 °C (at point A) is taken through a cycle as shown in the diagram below.
(a) Net work= -4292.52J
(b) Q=-w Q= 4292.52J
(c) If TB = TD = 774°K, TC = 2322°K ( not high enough to excite internal vibrational degrees of freedom), calculate the heat that is added to the gas in one cycle. (Hint: first determine for which processes heat enters or leaves the gas.) ??
(d) Calculate the heat that is removed from the gas in one cycle.??
(e) Calculate the actual efficiency (or COP heating, if the cycle shown above represents the operation of a heat pump) of this cycle. ??