A refrigerator maintains its compartment at while the kitchen air is at

PHYSICS · Subjective · CBSE · Physics · Thermodynamics · Thermodynamics

Problem

A refrigerator maintains its compartment at

-5^{\circ}\text{C}

while the kitchen air is at

25^{\circ}\text{C}

. If it extracts

600\,\text{J}

of heat from the compartment per cycle, calculate the minimum theoretical work that must be done on the refrigerator in each cycle.