Physics-Temperature & Heat

NEET Physics Temperature & Heat MCQ Question

Type: MCQ-conceptual-Hard-Class 11

Which of the following statements about heat and temperature is correct?

A

The latent heat of fusion is the heat required to change a substance from solid to liquid at the same temperature.

B

The specific heat capacity of a substance is the heat required to change its temperature without any change in mass.

C

The latent heat of vaporization is the heat required to change a substance from vapor to liquid at constant temperature.

D

Heat transfer occurs only through conduction and requires direct contact between materials.

Correct Answer

Option A

Detailed Explanation

The latent heat of fusion is defined as the heat per unit mass required to change a substance from solid to liquid at the same temperature and pressure, as stated in the NCERT context. The other options contain inaccuracies regarding specific heat capacity, latent heat of vaporization, and modes of heat transfer.

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