Homework Statement
How long would a 3.50 kW space heater have to run to put into a kitchen the same amount of heat as a refrigerator (coefficient of performance = 3.13) does when it freezes 1.46 kg of water at 21.4°C into ice at 0°C?
m=1.46 kg
c_water=4186 J/kg
Delta T= 21.4°C...