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

Options

A. `CaO+ CO_(2)(g) hArr CaCO_(3)(s)`
B. `NaCl(aq) hArr NaCl(s)`
C. `NaNO_(3)(s) hArr Na^(+) (aq) + NO_(3)^(-) (aq)`
D. `N_(2)(g) + 3H_(2)(g) hArr 2NH_(3)(g)`

Answer

C

Explanation

`NaNO_(3)` is a solid, which is converted to liquid ions