Question

11. Why does the temperature of a substance remain constant during its melting point
or boiling point?​

Answer 1

Answer:

The 'temperature of a substance' remains constant during its melting and boiling point because the change in any state of matter as in solid to liquid or the liquid to a gas involves crossing the 'latent heat of fusion' which causes a change in the inter molecular spacing of the molecules in the substance.

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Answer 2

Explanation:

because above it substance will destroy