What happens as you start to add heat to a solid substance?

Question

Quizplus · Accepted Answer

As heat is added to a solid substance, the thermal energy increases, causing the components of the solid to vibrate faster (A). When the melting point is reached, the thermal energy is sufficient to overcome intermolecular forces holding the components at their stationary points, and the solid melts into a liquid (B). Increasing the rate of heating of a substance at its melting point does not cause more rapid melting, as the melting point is a fixed temperature at which the solid transitions to a liquid (C). Once the solid has melted into a liquid, further heating of the liquid results in an increase in temperature (D). Therefore, all of the above choices are correct.

What Happens as You Start to Add Heat to a Solid