\((10 - x)\, litre\) \(\to\) \(C_2H_6\) ; mole of \(C_2H_6\)\( = (10-x)/22.4\)
\( = \,\,\frac{x}{{22.4}}\,\, \times \,\,894\,\, + \,\,\frac{{(10\, - \,\,x)}}{{22.4}}\,\, \times \,\,1500\)
ઉત્સર્જન ઉષ્મા \( = \,\,\frac{x}{{22.4}}\,\, \times \,\,894\,\, + \,\,\frac{{(10\, - \,\,x)}}{{22.4}}\,\, \times \,\,1500\)
\(474.6\,\,\, = \,\,\frac{x}{{22.4}}\,\, \times \,\,894\,\, + \,\,\frac{{(10\, - \,\,x)}}{{22.4}}\,\, \times \,\,1500\)
\(x\,\, = \,\,0.745,\,\,\,\,\,\% C{H_4}\, = \,\,74.5\,\% \,\) અને \(\% \,{C_2}{H_6}\,\, = \,\,25.5\,\% \)
$S{O_2} + \frac{1}{2}{O_2} \to S{O_3}$
$C _{2} H _{6} \rightarrow C _{2} H _{4}+ H _{2}$
પ્રકિયા એન્થાલ્પી $\Delta_{ r } H =...........{ kJ\, mol ^{-1}}$.
[આપેલ : બંધ એન્થાલ્પી $kJ$ $mol$ $^{-1}:C-C : 347, C = C : 611 ; C - H : 414, H - H : 436]$