Question

why does the temperature of ice remain constant at 0°c while it is melting, even though heat is being added? because the added heat is used to break the bonds between the ice molecules. because ice cannot absorb any more heat. because all the heat is used to increase the temperature of the water. because 0°c is the highest temperature ice can reach.

Explanation:

When ice is melting at 0°C, the added heat energy is used for the phase - change process, specifically to break the intermolecular bonds in the solid ice structure to turn it into liquid water. This is called the latent heat of fusion. During this phase - change, the temperature remains constant as the energy is not used to increase the kinetic energy (and thus temperature) of the molecules but to change the state of matter.

Answer:

Because the added heat is used to break the bonds between the ice molecules.