Q.
An ice cube is kept on the surface of an aluminium block and another ice cube on the surface of a plastic block. Both blocks have the same temperature. Select the correct statement.
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a
Ice will melt faster on the aluminium block
b
Ice will melt faster on the plastic block
c
Ice will melt equally fast on both the blocks
d
Ice will not melt on the plastic block
answer is A.
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Detailed Solution
Ice will melt faster on the aluminium block because it has a higher thermal conductivity than plastic and hence conducts heat more rapidly than plastic. Which is why ice melts faster on aluminium.
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