A refrigerator operates at steady state with a coefficient of performance of 4.5 and a power input of 0.8kW. Energy is rejected from the refrigerator to the surroundings at 20oC by heat transfer from metal coils whose average surface temperature is 28oC. Determine (a) the rate energy is rejected, in kW. (b) the lowest theoretical temperature inside the refrigerator, in K. (c) the maximum theoretical power, in kW, that could be developed by a power cycle operating between the coils and the surroundings. Would you recommend making use of this opportunity for developing power