Q.
A solid material is supplied with heat at constant rate and the temperature of the material changes as shown. From the graph, the false conclusion drawn is
A) $AB$ and $CD$ of the graph represent phase changes
B) $AB$ represents the change of state from solid to liquid
C) Latent heat of fusion is twice the latent heat of vaporization
D) $CD$ represents change of state from liquid to vapour
Explanation
The correct answer is Option C: Latent heat of fusion is twice the latent heat of vaporization.
A detailed explanation for this question is being prepared.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.