Question

exam lesson name: states of matter
exam number: 700698rr
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question 8 of 20 :
select the best answer for the question.

1. which correctly describes latent heat?

○ a. the heat of molecules that are under pressure
○ b. the heat used to change the temperature of a liquid
○ c. the heat absorbed or lost by a substance while it’s changing state
○ d. the heat held inside of ice crystals colder than -2°c
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Explanation:

To solve this, we analyze each option:

• Option A: Latent heat is not related to molecular pressure. Eliminate A.
• Option B: Changing temperature involves sensible heat, not latent heat. Eliminate B.
• Option C: Latent heat is defined as the heat absorbed or released when a substance changes state (like melting, boiling) without a temperature change. This matches the definition.
• Option D: Latent heat has nothing to do with ice crystals at -2°C specifically. Eliminate D.

Answer:

C. The heat absorbed or lost by a substance while it's changing state