What must occur in order for a matter to change states? A: Heat must be added or removed B: A chemical change must occur C: Other substances must be added D: The temperature must change

Biology · College · Tue Nov 03 2020

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During a change in the state of matter A: Heat must be added or removed.

This statement can be illustrated based on the explanations of phase changes:

Melting - Solid to Liquid 

Explanation: Heat is added to the solid as it melts.

Freezing - Liquid to Solid

Explanation: Heat is removed from the solid as it freezes.

Evaporation - Liquid to Gas

Explanation: Heat is added to the liquid as it evaporates.

Condensation - Gas to Liquid

Explanation: Heat is removed from the Gas as it condenses.

Sublimation -  Solid to gas

Explanation: Heat is added to the solid as it sublimates.

Deposition - Gas to Solid

Explanation: Heat is removed from the gas as it deposits.

 

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