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A thermocole cubical icebox of side 30 c...

A thermocole cubical icebox of side 30 cm has a thickness of 5.0 cm if 4.0 kg of ice are put ini the box, estimate the amount of ice remaining after 6 h. The outside temperature is `45^@C` and coefficient of thermal conductivity of thermocole`=0.01 J//kg`.

A

4.234 kg

B

1.734 kg

C

3.687 kg

D

0.456 kg

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