Question

What are the three phase changes that require energy to perform?

Answer 1

ANSWER! !

Condensation involves a gas becoming a liquid. Evaporation involves a liquid becoming a gas and sublimation is the change of a solid directly to a gas. Phase changes require either the addition of heat energy (melting, evaporation, and sublimation) or subtraction of heat energy (condensation and freezing).

Answer 2

‼️BoñJouR‼️

answer...

The three main phases are ...

• condensation
• evaporation
• sublimation

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