\({t}=0 \quad\quad\quad\quad 0\)
\({t}=30\, {~min}\quad\quad 0.2 \,{M}\)
Av. Rate of reaction \(=-\frac{\Delta[{A}]}{\Delta {t}}=\frac{\Delta[{B}]}{\Delta {t}}=\frac{(0.2-0)}{\frac{1}{2}}\)
\(=0.4=4 \times 10^{-1} \,{~mol} / {L} \times {hr}\)
${{H}_{2}}+C{{l}_{2}}\xrightarrow{\text{Sunlight}}2HCl$
(આપેલ : $\ln 10=2.303\,\log 2=0.3010$ )
[લો; $R =8.314 \,J\, mol ^{-1}\, K ^{-1}$ In $3.555=1.268$]