The graph shows the variation of tempera...

The graph shows the variation of temperature (T) of one kilogram of a material with the heat (H) supplied to it. At O, the substance is in the solid state. From the graph, we can conclude that

`T_(2)` is the melting point of the solid

BC represent the change of state from solid to liquid

`(H_(2)-H_(1))` represent the latest heat of fusion of the subsatance

`(H_(3)-H_(1))` represent the latest heat of vaporization of the liquid

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