Question

For the decomposition of azomethane, CH3N2CH3(g) → CH3CH3(g) + N2(g), a first-order reaction, the variation in partial pressure with time at 600 K is given as
The half-life of the reaction is ______ × 10–5s. [Nearest integer]

Answer 1

For first-order reaction
k=$\frac{1}{t}$ ln $\frac{P_0}{P}$
ln ⁡$\frac{P_0}{P}$=kt
t$_{\frac{1}{2}}$=ln$\frac{2}{k}$=$\frac{0.693}{3.465}$×104=2×10−5 s