- Aby chromatography
- ✓by sublimation
- Cby fractional distillation
- Dby distillation at low pressure
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$2{H_2}O \rightleftharpoons {H_3}{O^ + } + O{H^ - }$ ,
the value of $\Delta {G^o}$ at $298\,K$ is approximately .......$kJ\,mol^{-1}$
$\mathop {\mathop C\limits^ \oplus {H_3}}\limits_{(a)} $ $\mathop {\begin{array}{*{20}{c}}
{C{H_2} - \mathop C\limits^ \oplus {H_2}} \\
{|\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,} \\
{\,F\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,}
\end{array}}\limits_{(b)} $ $\mathop {\begin{array}{*{20}{c}}
{C{H_2} - \mathop C\limits^ \oplus {H_2}} \\
{|\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,} \\
{Br\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,}
\end{array}}\limits_{(c)} $ $\mathop {\begin{array}{*{20}{c}}
{C{H_2} - \mathop C\limits^ \oplus {H_2}} \\
{|\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,} \\
{\,C{H_3}\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,}
\end{array}}\limits_{(d)} $
$[HCl=36.5; {(N{H_4})_2}S{O_4}=132; N{H_3}=17]$