why does temperature of Substance remains
contest during the melting point
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Explanation:
The ‘temperature of a substance’ remains constant during its melting and boiling point because the change in any state of matter as n solid to liquid or the liquid to a gas involves crossing the ‘latent heat of fusion’ which causes a change in the intermolecular spacing of the molecules in the substance.
The temperature of a substance ‘latent heat of fusion’ should cross to free the molecules from a packed solid state to a liquid state. Similarly the intermolecular forces should become freer flowing to convert it into gas.
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