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During the time that latent heat is involved in a change of state: Question 15 Select one: a. a chemical reaction takes place b. the temperature does not change c. the substance always expands d. kinetic energy changes into potential energy e. molecular activity remains constant

Question

During the time that latent heat is involved in a change of state: Question 15 Select one: a. a chemical reaction takes place b. the temperature does not change c. the substance always expands d. kinetic energy changes into potential energy e. molecular activity remains constant

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Solution

The correct answer is b. the temperature does not change.

Here's why:

Latent heat is the energy absorbed or released by a substance during a change in its physical state (phase) that occurs without changing its temperature. This reflects the fact that during a phase transition, the heat energy is used to change the substance's phase, not its temperature.

For example, when ice melts, it remains at 0°C, and the energy from the heat goes into changing the state of the water from solid to liquid. The temperature does not change until all the ice has melted. This absorbed heat is called latent heat.

So, during the time that latent heat is involved in a change of state, the temperature of the substance does not change.

This problem has been solved

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