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A 2-cm-high cylindrical ice block

A 2-cm-high cylindrical ice block (k = 2.22 W/m·K and α = 0.124 × 10-7 m2 /s) is placed on a table on its base of diameter 2 cm in a room at 24°C. The heat transfer coefficient on the exposed surfaces of the ice block is 13 W/m2 ·K, and heat transfer from the base of the ice block to the table is negligible. If the ice block is not to start melting at any point for at least 3 h, determine what the initial temperature of the ice block should be.

Jul 23 2020 View more View Less

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