The decomposition of N2O5 occurs as, 2N2O5 → 4N2 + O2, and follows Ist order kinetics, hence:

Question

The decomposition of N2O5 occurs as, 2N2O5 → 4N2 + O2, and follows Ist order kinetics, hence: (A) the reaction is unimolecular (B) the reaction is bimolecular (C)  t1/2 propto ao  (D) none of the above

Tardigrade Admin · Accepted Answer

For an nth order reaction t1/2 propto (1/an-1) ∴ For 1st order reaction, t1/2 propto (1/a1-1) propto ao.

Q. The decomposition of $N_{2} O_{5}$ occurs as, $2 N_{2} O_{5} \to 4 N_{2} + O_{2}$ , and follows Ist order kinetics, hence:

the reaction is unimolecular

the reaction is bimolecular

$t_{1/2} \propto a^{o}$

none of the above

For an nth order reaction
$t_{1/2} \propto \frac{1}{a ^{n - 1}}$
$∴$ For 1st order reaction,
$t_{1/2} \propto \frac{1}{a ^{1 - 1}} \propto a^{o} .$

Q. The decomposition of N2​O5​ occurs as, 2N2​O5​→4N2​+O2​, and follows Ist order kinetics, hence: