[tex3]2\ \text{Na}_2\text{O}_{2(s)}+2\ \text{H}_2\text{O}_{(l)} \rightarrow 4\ \text{NaOH}_{(s)} + \text{O}_{2(g)}[/tex3]
DADOS:
[tex3]\begin{array}{|c|c|c|}
\hline
\text{Substância} & \begin{array}{c}\text{Entalpia de formação a 25º C}\\\text{(KJ.mol-1)}\end{array} & \begin{array}{c}\text{S}^0 a\ 25º\text{C}\\\text{(Jmol-1K-1)}\end{array}\\
\hline
\text{H}_2\text{O}_{(l)} & -286,0 & 69,69 \\
\hline
\text{Na}_2\text{O}_{2(s)} & -510,9 & 94,60 \\
\hline
\text{NaOH}_{(s)} & -426,8 & 64,18 \\
\hline
\text{O}_{2(g)} & 0 & 205,00 \\
\hline
\end{array}[/tex3]
Resposta
S/ GAB