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The specific equivalent weight of a soli...

The specific equivalent weight of a solid element is 17.8 and its specific heat is 0.124cal`*K^(-1)*g^(-1)`. Find its valency and correct specific atomic mass.

Text Solution

Verified by Experts

As per doulong and Petit's law, approximate atomic mass of the solid element=`(6.4)/("specific heat")=(6.4)/(0.124)=51.61`
`therefore`Valency of element`=("atomic mass (approx)")/("equivalent weight")=(51.61)/(17.8)~~3`
`therefore`Correct atomic mass of the element
=equivalent weight`xx`valency`=17.8xx3=53.4`
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