SSC
PHYSICS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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the energy that must be gained or lost for crystallization or melting to occur
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thermal fusion
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thermal vaporization
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thermal equilibrium
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thermal expansion
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Explanation:
Detailed explanation-1: -During melting, energy goes exclusively to changing the phase of a substance; it does not go into changing the temperature of a substance. Hence melting is an isothermal process because a substance stays at the same temperature.
Detailed explanation-2: -The name given to the energy absorbed during a phase change is latent heat. When solid changes to liquid, heat energy absorbed is called latent heat of melting.
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