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An ice chest is constructed of Styrofoam [k =0.033 W/m C] with inside dimensions of 25 by 40 by 100 cm. The wall thickness is 5.

An ice chest is constructed of Styrofoam [k =0.033 W/m· ◦C] with inside dimensions of 25 by 40 by 100 cm. The wall thickness is 5.0 cm. The outside of the chest is exposed to air at 25◦C with h=10 W/m2 · ◦C. If the chest is completely filled with ice, calculate the time for the ice to completely melt. State your assumptions. The enthalpy of fusion for water is 330 kJ/kg.

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