A refrigerator with a coefficient of performance of 4 transfers heat from a cold region at...

A refrigerator with a coefficient of performance of 4 transfers heat from a cold region at ‒20°C to a hot region at 30°C. Calculate the total entropy change of the regions when 1 kJ of heat is transferred from the cold region. Is the second law satisfied? Will this refrigerator still satisfy the second law if its coefficient of performance is 6?