Unicorn152020
Answered

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Why is a different amount of energy required to melt different substances?

Sagot :

Answer:

On a microscopic level melting or vaporization involves separating molecules which are attracted to each other. The amount of energy needed to separate the molecules is proportional to the intermolecular forces between the molecules.

Explanation:

llamalover888

Answer:

Hello~

Llamalover here!

Foreign substances in a crystalline solid disrupt the repeating pattern of forces that hold the solid together. So a smaller amount of energy is required to melt the part of the solid surrounding the impurity. If less energy is required, then this explains the melting point depression (lowering) observed from impure solids.

Explanation:

Hope this helps!

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