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30.0 kJ of heat is required to melt 1mol...

`30.0 kJ` of heat is required to melt `1mol` of sodium chloride. The entropy change during melting is `15.05mol^(-1)K^(-1)`. Calculate the melting point of sodium chloride.

Text Solution

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`Delta_("melting")S =(Delta_("melting")H)/(T)`
or `T = (Delta_("melting")H)/(Delta_("melting")S) = (30 xx 10^(3))/(15) = 2 kJ`
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