The kinetics of the reaction 2 N₂ O₅ → 4 NO₂+O₂ in liquid bromine medium was measured independently for three… · ABC26PH0665
Subject: Physical Chemistry · Chapter: Chemical Kinetics · Topic: Rate Laws Order · Exam: JAM 2001-2022 · Marks: 2 · Difficulty: Hard
The kinetics of the reaction $2 \mathrm{N}_{2} \mathrm{O}_{5} \rightarrow 4 \mathrm{NO}_{2}+\mathrm{O}_{2}$ in liquid bromine medium was measured independently for three different initial concentration of $\mathrm{N}_{2} \mathrm{O}_{5}: 0.11,0.07$ and $0.05 \mathrm{mol} \mathrm{L}^{-1}$. The half-life of the reaction was found to be 4.5 hours for all these concentrations. The order of the reaction is
(a)0
(b)1
(c)2
(d)0.5
Answer
Answer: B ✓ checked by 4AB · confidence high
Explanation
A half-life independent of initial concentration means first order (b).