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10-1.Thermometry, Thermal Expansion and Calorimetry
easy
$Assertion :$ Melting of solid causes no change in internal energy.
$Reason :$ Latent heat is the heat required to melt a unit mass of solid.
A
If both Assertion and Reason are correct and the Reason is a correct explanation of the Assertion.
B
If both Assertion and Reason are correct but Reason is not a correct explanation of the Assertion.
C
If the Assertion is correct but Reason is incorrect.
D
If the Assertion is incorrect but the Reason is correct.
(AIIMS-1998)
Solution
Melting of solid causes change in its internal energy. Latent heat is the heat required to melt one unit mass of solid. Option $(e)$ is correct.
Standard 11
Physics
Similar Questions
Values for latent heat in Column$-\,I$ and its values are given in Column$-\,II$. Match the followings :
| Column $-\,I$ | Column $-\,II$ |
| $(a)$ Latent heat of vaporization $L_V$ | $(i)$ $22.6\, \times \,{10^5}\,J\,/kg$ |
| $(b)$ Latent heat of fusion $L_f$ | $(ii)$ $33.3\, \times \,{10^5}\,J\,/kg$ |
| $(iii)$ $3.33\, \times \,{10^5}\,J\,/kg$ |
easy
