Properties Of Solids And Liquids Question 30

Question: If mass energy equivalence is taken into account, when water is cooled to form ice, the mass of water should [AIEEE 2002]

Options:

A) Increase

B) Remain unchanged

C) Decrease

D) First increase then decrease

Show Answer

Answer:

Correct Answer: B

Solution:

When water is cooled at 0°C to form ice then 80 calorie/gm (latent heat) energy is released. Because potential energy of the molecules decreases. Mass will remain constant in the process of freezing of water.



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