1.

why sometimes temperature does not rise even when heat is supplied to a substance

Answer» Its the concept of latent heat
sometimes temperature does not rise when heat is supplied to the substance because the heat is absorbed by it to get converted into another state , this process is also known as the latent heat.
Because the heat supplied to a substance is used during the change of state in overcoming the intermolecular force
Because of latent heat .
Because this heat is used in breaking of intermolecular forces of attraction.


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