Question

A substance has a freezing point of 24 degrees celsius. Which of the following is true for the substance?a) it will also change from a solid to a liquid at 24 degrees celsius while the solid loses energyb) it will also change from a solid to a liquid at 24 degrees celsius while the solid gains energyc) it will also change from a solid to a gas at 24 degrees celsius while the solid loses energyd) it will also change from a solid to a gas at 24 degrees celsius while the solid gains energy

Answer 1

Option B is correct. It will also change from a solid to a liquid at 24 degrees celsius while the solid gains energy

Explanations:

What is freezing point?

The point where solid and liquid coexist is known as the freezing point. Based on this definition, the last two options are incorrect since freezing does not involve the change of solid state to gaseous state.

The freezing point is therefore the temperature at which a solid substance gains energy to overcome the force of attraction between the molecules to change to the liquid state.

Hence for a substance that has a freezing point of 24 degrees celsius, the substance will therefore change from a solid to a liquid at 24 degrees celsius while the solid gains energy.