$(i)\,\, X_2 \rightarrow X + X$ $($ઝડપી$)$
$(ii)\,\,X + Y_2 \rightleftharpoons XY + Y$ $($ધીમી$)$
$(iii)\,\,X+ Y \rightarrow XY$ $($ઝડપી$)$
તો કુલ પ્રક્રિયાક્રમ જણાવો.
\(\mathrm{r}=\mathrm{K}[\mathrm{X}]\left[\mathrm{Y}_{2}\right]\)
From fast step-
\({\mathrm{K}_{\mathrm{eq}}=\frac{[\mathrm{X}]^{2}}{\left[\mathrm{X}_{2}\right]}} \)
\({[\mathrm{X}]^{2}=\mathrm{K}_{\mathrm{eq}}\left[\mathrm{X}_{2}\right]}\)
\({[\mathrm{X}]=\sqrt{\mathrm{K}_{\mathrm{eq}}}\left[\mathrm{X}_{2}\right]^{1 / 2} \ldots .(2)}\)
From equation \((1)\) and \(( 2)\)
\(\mathrm{r}=\mathrm{K} \cdot \sqrt{\mathrm{K}_{\mathrm{eq}}}\left[\mathrm{X}_{2}\right]^{1 / 2}\left[\mathrm{Y}_{2}\right]\)
\(\mathrm{r}=\mathrm{K}\left[\mathrm{X}_{2}\right]^{1 / 2}\left[\mathrm{Y}_{2}\right]\)
Overall order of reaction \(=1+0.5=1.5\)
${A}+{B} \rightarrow {M}+{N}$ $......$ ${kJ} {mol}^{-1}$ બરાબર છે. (નજીકના પૂર્ણાંકમાં)