Refrigerant 134a enters the condenser of a steady-flow Carnot refrigerator as a saturated vapor at 90 psia, and it leaves with a quality of 0.05. The heat absorption from the refrigerated space takes place at a pressure of 30 psia. Determine (a) the coefficient of performance, (b) the quality at the beginning of the heat-absorption process, and (c) the net work input. a) COP_R, C = _____ b) x_1 = ______ c) w_net, in = _____Btu/lbm