A) \[Ca{{O}_{(s)}}+C{{O}_{2(g)}}CaC{{O}_{3\,(s)}}\]
B) \[NaC{{l}_{(aq)}}NaC{{l}_{(s)}}\]
C) \[NaN{{O}_{3(g)}}N{{a}^{+}}_{(aq)}+NO_{3(aq)}^{-}\]
D) \[{{N}_{2(g)}}+3{{H}_{2(g)}}2N{{H}_{3(g)}}\]
Correct Answer: C
Solution :
In the reaction \[NaN{{O}_{3(s)}}Na_{(aq)}^{+}+NO_{3(aq)}^{-}\] \[\Delta {{S}^{o}}>0\] because ions in the aqueous solution have greater randomness than the solid.
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