Question

A substance has a freezing point of 24 °C. Which of the following is true for the substance?

It will also change from a solid to a liquid at 24 °C while the solid loses energy.
It will also change from a solid to a liquid at 24 °C while the solid gains energy.
It will also change from a solid to a gas at 24 °C while the solid loses energy.
It will also change from a solid to a gas at 24 °C while the solid gains energy.

Answer 1

It will also change from a solid to a liquid at 24°C while the solid gains energy.

Step-by-step explanation:

i just finished the test and got it right

Answer 2

It will also change from a solid to a liquid at 24°C while the solid gains energy.

Step-by-step explanation:

Freezing point is the temperature at which a solid and liquid co-exist.

In other words,it is the temperature at which a solid gains energy to overcome the force of attraction between molecules to become liquid or a liquid looses energy to become a solid.

Hence at 24°C:

• The substance changes from solid to liquid by gaining energy

• The substance changes from liquid to solid by loosing energy

Now let us check the options:

The last two options are wrong since conversion is not between solid and gas.It is between solid and liquid.

The first option is wrong as solid gains energy to become liquid.

Hence the correct answer is second option.