NDA 2018 Physics question
Which of the following statements about latent heat for a given substance is/are correct ? 1. It is fixed at a given temperature. 2. It depends upon the temperature and volume. 3. It is independent of temperature and volume. 4. It depends on the temperature but independent of volume. Select the correct answer using the code given below :
Answer: (D)
Solution
Latent heat is the heat needed per unit mass to change the state of a substance. Being a per-unit-mass quantity it does not depend on the amount or volume of the substance, but its value
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