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Question

Question: The accompanying graph shows the variation of temperature (T) of one kilogram material with heat (Q)...

The accompanying graph shows the variation of temperature (T) of one kilogram material with heat (Q) supplied to it. At O, the substance is in solid state. Which of the following interpretations from the graph is correct ?

A

T2 is the melting point of the solid

B

BC represents the change of state from solid to liquid

C

(Q1 – Q2) represents the latent heat of fusion of the substance

D

(Q3 – Q1) represents the latent heat of vaporisation of the liquid

Answer

(Q1 – Q2) represents the latent heat of fusion of the substance

Explanation

Solution

Conceptual