Question

question 7 of 12
freezing and condensation are ____________. they are going down on a heating curve (from gas to solid).
endothermic
exothermic

Explanation:

Exothermic processes release heat. Freezing (liquid to solid) and condensation (gas to liquid) both release energy (heat) to the surroundings. In a heating curve, going from gas to solid involves these exothermic phase - change steps (gas to liquid - condensation, liquid to solid - freezing). Endothermic processes absorb heat (e.g., melting - solid to liquid, vaporization - liquid to gas).

Answer:

Exothermic