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Ice of mass 14.0 kg at 0.00° C is placed in an ice chest. The ice...

Ice of mass 14.0 kg at 0.00° C is placed in an ice chest. The ice chest has 3.50 cm thick walls of thermal conductivity 1.00 10-5 kcal/s · m · C° and a surface area of 1.25 m2.

(a) How much heat must be absorbed by the ice before it melts?

(b) If the outer surface of the ice chest is at 28.0° C, how long will it take for the ice to melt?

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