Which of the following would be expected to have the largest entropy per mole?

Which of the following statements is incorrect?

For the reaction: $H^{+}_{(aq)} + OH^{-}_{(aq)} \rightarrow H_{2}O_{(l)}$,given the standard molar entropies $S^{o}(298 \ K)$ in $J \ K^{-1} \ mol^{-1}$ as $S^{o}(H^{+}) = 0$,$S^{o}(OH^{-}) = -10.7$,and $S^{o}(H_{2}O) = 70$. The standard entropy change $\Delta S^{o}$ for the reaction is ..... $J \ K^{-1} \ mol^{-1}$.

What is the entropy of vaporisation of water at $100\,^{\circ}C$,if the molar heat of vaporisation is $9710\,cal/mol$?

For which of the following processes is $\Delta S$ negative?

Which of the following is zero during the adiabatic expansion of a gas?