An electrical moter is used to operate a Carnot refrigerator with an interior temperature of 273K. Liquid water at 273K is placed into a refrigerator and transformed to ice at 273K. If the room temperature is 300 K what mass of ice can be produced in 1 hour by a 0.35-hp motor that is running continuously? Assume that the refrigerator is perfectly insulated and operates at the maximum theoretical efficiency.