1.

Which one of the following has DeltaS^(@) greater than zero

Answer»

`CaO(s) + CO_(2)(g) hArr CaCO_(3)(s)`
`NACI(aq) hArr NaCI(s)`
`NaNO_(3)(s) hArr NA^(+)(aq) + NO_(3)^(-) (aq)`
`N_(2)(g)+3H_(2)(g) hArr 2NH_(3)(g)`

Solution :`NaNO_(3)` is a solid , which is converted to LIQUID ions.


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