The latent heat of fusion of ice is 3.4 X 105 J/Kg. What do you mean by this statement? Explain.

This is the amount of heat required to change solid ice into liquid water.

Explanation:

-Latent heat of fusion or enthalpy of fusion is defined as the amount of heat required by a substance to change its status from solid to liquid

-Hence, 3.4 X 105 J/Kg is the amount of heat required to change solid ice into liquid water.

answer : a model is often used to explain and make things easier to understand when any scientific topic needs to be demonstrated and explained.

as in this case where a scientist wants to use a model to present the results of his detailed scientific investigation. he should do it as it will him to make the audience understand the concept in a much better way. also, it can be changed according to new scientific understandings.