Derajat Disosiasi

Derajat disosiasi:

\begin{equation*}
\begin{split}
\alpha & = \frac{\text{zat yang terurai}}{\text{zat mula-mula}} \\\\
25 \% & = \frac{\text{zat yang terurai}}{\text{4 mol}} \\\\
1 \text{ mol} & = \text{zat yang terurai}
\end{split}
\end{equation*}

\begin{equation*}
\begin{array}
& & \ce{2 HI (g)} & \ce{<=>} & \ce { H2 (g)} & + & \ce{ I2(g)} \\
\text{Mula-mula} & 4 & & - & & - \\
\text{Reaksi} & 1 & & 0,5 & & 0,5 \\
\text{Akhir} & 3 & & 0,5 & & 0,5
\end{array}
\end{equation*}

Komposisi gas-gas setelah kesetimbangan tercapai:

\(\ce{HI} = 3 \text{ mol}\)

\(\ce{H2} = 0,5 \text{ mol}\)

\(\ce{I2} = 0,5 \text{ mol}\)