Question

drag descriptions (green boxes) and drop them into the correct boxes. melting condensing particles speed up energy is added temperature increases particles slow down solid to liquid gas to liquid energy is lost temperature decreases

Explanation:

Melting is the process where a solid turns into a liquid. When this happens, energy is added to the substance. This added energy causes the particles in the solid to speed up as they gain kinetic energy. Condensing is the process where a gas turns into a liquid. In this process, energy is lost from the gas. As the gas loses energy, the particles in the gas slow down as they lose kinetic energy. Also, during melting (solid - liquid phase change), the temperature remains constant at the melting point until the phase change is complete. But if we consider the general idea of what happens during the process (before reaching the melting point when heating a solid, temperature increases as energy is added). For condensing (gas - liquid phase change), the temperature remains constant at the condensation point until the phase change is complete. But if we consider the general idea of what happens during the process (before reaching the condensation point when cooling a gas, temperature decreases as energy is lost).

Answer:

Melting: Particles speed up, Energy is added, Temperature increases (if considering heating before melting point), Solid to liquid.
Condensing: Particles slow down, Energy is lost, Temperature decreases (if considering cooling before condensation point), Gas to liquid.