Question

. A cubical thermocole icebox of side 40cm has a thickness of 8cm. If 7 kg

of ice is put in the box, estimate the amount of ice remaining after 5 hour.

The outside temperature is 40°C, and coefficient of thermal conductivity

of thermocol e is 0.01 Wm-1 °C⁻¹. And Lf = 335×103 Jkg-1

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Answer 1

Answer:

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