A. all the heat is used to break the bonds holding the molecules of the solid together
B. the heat capacity has become very large as the substance melts
C. the heat energy is quickly conducted away
D. the heat gained is equal to the heat lost by the substance

Correct Answer: Option A

A. all the heat is used to break the bonds holding the molecules of the solid together

Explanation

During the transformation of the matter from the solid to the liquid state, the heat supplied does not produce a temperature increase because all the heat is used to break the bonds holding the molecules of the solid together

SEE ALSO  500g of water is heated so that its temperature rises from 30°C to 72°C in 7 minutes. calculate the supplied per minute. (Specific heat capacity of water is 4200Jkg−1K−1

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