Question

Material A has a small latent heat of fusion. Material B has a large heat of fusion. Which of the following statements is true? (assume equal masses of both materials) material A will take less energy to phase change to a liquid material A will take more energy to phase change to a liquid material A will take less energy to phase change to a gas material A will take more energy to phase change to a gas

Answer 1

Answer: Material A will take less energy to phase change to a liquid material.

Explanation:

The energy provided to change the enthalpy of a substance is known as latent heat of fusion. This energy actually helps in changing the state of a substance that is from solid to liquid or vice versa.

Hence, a substance with small latent heat of fusion will require less energy to change its phase. Whereas a substance with large heat of fusion will require large energy to change its phase.

There, it can be concluded that material A will take less energy to phase change to a liquid material

Answer 2

The correct answer would be the first option. Material A having a smaller latent heat of fusion would mean that it will take only less energy to phase change into the liquid phase. Latent of heat of fusion is the amount of energy needed of a substance to phase change from solid to liquid or liquid to solid.