If we supply additional heat to a solid in equilibrium with its liquid at the melting point, the thermal energy added is used to: a. raise the temperature of the solid above its melting point. b. expand the solid. c. change solid to liquid. d. change the liquid back to solid. e. overcome the intermolecular forces that hold the solid together.

c. change solid to liquid.

Explanation: Heat is an energy which is present in a substance which is obtained through the transfer of temperature from a substance or material of high temperature to a substance or material of lower temperature. Heat is measured in JOULES OR KILOJOULES,

When heat is applied to a solid material it tends to cause the atomic particles of the solid to have a high kinetic energy making them to loose attachment to each other,when this particles starts to get detached their is the chance of a CHANGE OF STATE WHICH CAN BE FROM SOLID TO LIQUID OR FROM LIQUID TO GAS.

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