\(2\) મોલ \(HCl\) ના સર્જન માટે \(\Delta H =-184.6\)
\(\therefore 5.67\) મોલ \(HCl\) ના સર્જન માટે \(\Delta H=(?)\)
\(=\frac{-184.6 \times 5.67}{2}\)
\(=-92.6 \times 5 \frac{2}{3}=-92.6 \times \frac{17}{3} \approx-523\, kJ\)
$(i)\,\,{C_{12}}{H_{22}}{O_{11}}\,\, + \,\,12{O_2}\,\, \to \,\,12\,\,C{O_2}\, + \,\,11{H_2}O,\,\,\,\,\,\,\,\,\,\,\,\,\Delta H\,\, = \,\, - 5200.7\,kJ\,mo{l^{ - 1}} $
$(ii)\,\,C\,\, + \,\,{O_2}\, \to \,\,C{O_2},\,\,\,\,\,\,\,\,\,\,\,\,\Delta H\,\, = \,\, - \,394.5\,\,kJ\,\,mo{l^{ - 1}}$
$(iii)\,\,{H_2}\,\, + \,\frac{1}{2}{O_2}\,\, \to \,\,\,{H_2}O,\,\,\,\,\,\,\,\,\,\Delta H\,\, = \,\, - \,285.8\,kJ\,\,mo{l^{ - 1}}$
ત્યારે થતુ કાર્ય ............$kJ$
$2{H_2}{O_2}(l) \rightleftharpoons {H_2}O(l) + {O_2}(g)$
$(R = 83\, JK^{-1}\, mol^{-1})$
[ઉપયોગ : $\left.{R}=8.3 \,{~J} \,{~mol}^{-1}\, {~K}^{-1}\right]$
$\left(1 F =96,500\, C\, mol ^{-1}\right)$