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Statement The atomic weight of an element is given by Dulong Petit's law: at.wt.xxsp. heat (cal//mole) cong6.4. Explanation The formula is valid for metals only and not for all elements.

Answer»

`S` is correct but `E` is WRONG.
`S` is wrong but `E` is wrong.
Both `S` and `E` are correct and `E` is correct explanation of `S`.
Both `S` and `E` are correct but `E` is not correct explanation of `S.

Solution :DULONG PETIT's LAW is valid for metals only. Also it is `at.wt.xxsp`. Heat `(cal//g) cong 6.4`


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