Question

what is the common factor between melting and vaporization?
a both are endothermic processes
b both occur at low temperatures
c both involve energy release
d both involve conversion to solid phase

Explanation:

• Melting is the process of a solid turning into a liquid. It requires heat absorption (endothermic) as energy is needed to break the bonds in the solid.
• Vaporization is the process of a liquid turning into a gas. It also requires heat absorption (endothermic) as energy is needed to overcome the intermolecular forces in the liquid.
• Option B: Vaporization can occur at high temperatures (e.g., boiling). Melting occurs at the melting point (which can vary, not necessarily low).
• Option C: Both melting and vaporization involve energy absorption, not release.
• Option D: Both involve moving away from the solid phase (melting from solid to liquid, vaporization from liquid to gas).

Answer:

A. Both are endothermic processes