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An element has a specific heat of 0.113 ...

An element has a specific heat of `0.113 cal//g C^(@)`. Calculate atomic weight of element.

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According to Dulong Petit's law, Atomic weight x Specific heat = 6.4 cal.
Atomic weight `xx 0.113` cal/g = 6.4 cal Atomic weight `=6.4/(0.113) = 56`
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