Nitrogen gas is used in a Carnot cycle (see sketch, Processes 12 and 3-4 are isothermal; processes 23 and 41 are adiabatic). The cycle has a thermal efficiency of60% and with TL = 300 K. During heat rejection (process 34), the pressure of the nitrogen increases from 50 kPa to 150 kPa. (a) What is TH (in K)? For a single cycle, determine (b) qL () ( - PA = QH (d) Wnet (Recall that for any cycle, Qnet,in = Wnet,out) Wnet.out 2 TH=const. TL QL 3 QL/m (i.e. the heat rejection per unit mass, in kJ/kg)* QH/m (i.e. the heat intake per unit mass, in kJ/kg) = const. Wnet,out/m (i.e. the net work done per unit mass, in kJ/kg).