Rate constant of a reaction, $2 \mathrm{NO}_2 \mathrm{Cl}_{2(\mathrm{~g})} \longrightarrow 2…
Rate constant of a reaction,
$2 \mathrm{NO}_2 \mathrm{Cl}_{2(\mathrm{~g})} \longrightarrow 2 \mathrm{NO}_{2(\mathrm{~g})}+\mathrm{Cl}_{2(\mathrm{~g})}$
is 4.7672 minute $^{-1}$. Calculate half life of reaction.
0.0727 minute
0.1454 minute
0.2181 minute
0.4362 minute
Solution
For the given first order reaction, $\mathrm{t}_{1 / 2}=\frac{0.693}{\mathrm{k}}=\frac{0.693}{4.7672 \text { minute }^{-1}}=0.1454$ minute