Question: As heat is added to a solid at its melting point, which of the following is true of its molecules? Group of answer choices The

As heat is added to a solid at its melting point, which of the following is true of its molecules? Group of answer choices The potential energy is increasing, but average kinetic energy remains the same. The average kinetic energy is increasing, but potential energy remains the same. Both average kinetic energy and potential energy are increasing. Neither average kinetic energy nor potential energy increases

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