Question

How does the addition of salt to solid ice affect the melting transition from solid to liquid?

A. The amount of energy absorbed would not change during the plateau.
B. It would need to absorb less energy during the plateau in order to melt.
C. It would need to absorb more energy during the plateau in order to melt.
D. There would be no plateau, the salt would cause the solid to immediately melt.

Answer 1

Answer: C. It would need to absorb more energy during the plateau in order to melt.

Step-by-step explanation:

adding salt lowers the freezing point, meaning it needs to absorb more energy from its surrounding in order to melt.

Answer 2

The water would need to B. absorb less energy during the plateau in order to melt.

Step-by-step explanation:

Salt when added to ice lowers the freezing point of the ice. So, if ice is added to the solid ice it doesn't let it to freeze rather the temperature of water may fall but it won't freeze.

For melting, it needs less energy after adding salt because salt itself absorbs the energy from the surroundings to help the phase transition of water from solid to liquid.