ESCO Air Conditioning Practice Exam 2025 – Complete Study Resource

Question: 1 / 400

Which type of heat causes a change in state without changing temperature?

Latent heat

Latent heat is the correct answer because it is the type of heat that causes a change in state without changing the temperature. This is because latent heat is the amount of energy needed to cause a phase change, such as from solid to liquid or liquid to gas. Sensible heat, on the other hand, does change the temperature and is the type of heat that we feel and measure directly. Specific heat refers to the amount of heat necessary to raise the temperature of a substance by a certain amount, so it does not cause a change in state without changing temperature. Superheat is a term used in relation to steam, and it refers to when the temperature of the steam is raised above its boiling point without changing its state. Therefore, latent heat is the only option that accurately fits the given question.

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Sensible heat

Specific heat

Superheat

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