The graph shows the variation of temperature 
of one kilogram of a material with the heat 
supplied to it, at 
, the substance is in the solid state. From the graph, we can conclude that.
is the melting point of the solid. 
represents the change of state from solid to liquid. 
represents the latent heat of fusion of the substance. 
represents the latent heat of vaporization of the liquid
Text Solution
Verified by ExpertsC
Since, in the region 
temperature is constant therefore at this temperature phase of the material changes from solid to liquid and 
heat will be absorb by the material. This heat is known as the heat of melting of the solid. Similarity in the region 
temperature is constant therefore at this temperature phase of the material changes from liquid to gas and 
heat will be absorbed by the material. This heat as known as the heat of vaporization of the liquid.
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