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Question
A solid X of mass 80 g and at 80°C melts completely to form a liquid at 80°C, by absorbing 720 J of heat energy. The sp. latent heat of fusion of the solid is:
Options
9.5 Jg−1
8.0 Jg−1
8.5 Jg−1
9.0 Jg−1
MCQ
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Solution
9.0 Jg−1
Explanation:
Specific latent heat (L) = `Q/m`
= `720/80`
= 9.0 Jg−1
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