Which one of the following has Delta S^o grea | vedclass

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(C) Entropy $(\Delta S^o)$ is a measure of the disorder or randomness of a system.
For a reaction,$\Delta S^o > 0$ when the disorder increases,whi

Vedclass · Accepted Answer

$NaNO_{3_{(s)}} \rightleftharpoons Na^{+}_{(aq)} + NO_{3(aq)}^{-}$

Vedclass · Answer

(C) Entropy $(\Delta S^o)$ is a measure of the disorder or randomness of a system.
For a reaction,$\Delta S^o > 0$ when the disorder increases,which typically occurs when the number of moles of gas increases or when a solid dissolves into aqueous ions.
In option $(C)$,$NaNO_{3(s)}$ (a solid) dissolves to form $Na^{+}_{(aq)}$ and $NO_{3(aq)}^{-}$ (aqueous ions),which increases the disorder of the system.
In options $(A)$,$(B)$,and $(D)$,the number of gas moles decreases or the system moves from a more disordered state to a more ordered state,resulting in $\Delta S^o < 0$.

Which one of the following has $\Delta S^o$ greater than zero?

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