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A thermocole box is a cheap and effieicn...

A thermocole box is a cheap and effieicnet method for storing small quantity of cooked food in summer in particular. A cubical box of side 30 cm has a thickness of 5 cm. If 4 kg of ice are put in a box. Estimate the amount of ice remaining after 6 h. The outside temperature `45^@C`, and coefficient `K = 0.01 J s^-1 m^-1 k^-1` [Heat of fusion of water ` = 335 xx 10^3 J kg^-1]`.

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MODERN PUBLICATION-Unit test - Properties of bulk matter-Example
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