One component in a household refrigerator is the compressor where refrigerant 12 enters as saturated vapor at -24?F and is isentropic ally compressed to 29 psia. Determine the work required in kJ/kg and the exit temperature (in °C) of the refrigerant. 2. To keep the petroleum flowing in the Alaskan pipeline, it must be heated periodically. What is the heat transfer rate required at a heating station to heat petroleum at constant pressure flowing at 30 kg/s from 0?C to 100?C? 3. Consider a rigid tank of volume 2 m3 containing saturated liquid refrigerant-12 at 20?C. The tank is connected to an ideal turbine and as the refrigerant leaves the tanks it flashes to saturated vapor. If the tank is maintained at 20?C and the turbine exit pressure is 100 kPa, how much work will be produced when two thirds of the initial mass has been used?