3
lesson pretestMultiple Choice

Pretest

Question 3 • Physics

In the formulas for latent heat of fusion and latent heat of vaporization, what does Q represent?

Answer
A
the amount of a substance that changes state
B
the mass of a substance
C
the amount of heat released or absorbed by a substance
D
the temperature of a substance

Explanation

In latent heat formulas, Q represents the heat energy transferred during a change of state. It may be absorbed or released without changing the substance’s temperature, so the correct choice is “the amount of heat released or absorbed by a substance.”

AI-written and checked against the verified answer.

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