G [reftech] a refrigerator operates at steady state with a coefficient of performance of 4.5 and a power input of 0.8 kw. energy is rejected from the refrigerator to the surroundings at 20 oc by heat

G [reftech] a refrigerator operates at steady state with a coefficient of performance of 4.5 and a power input of 0.8 kw. energy is rejected from the refrigerator to the surroundings at 20 oc by heat transfer from metal coils attached to the back. determine: (a) the rate energy is rejected, in kw and btu/h, and [4.4 kw, 15,016.5 btu/h] (b) the lowest theoretical temperature inside the refrigerator, in k. [239.7 k]