STANDARDChemistry-Chemical Kinetics
STANDARD Chemistry Rate Constant MCQ Question
Type: MCQ-numerical-Medium-Class 12
The rate constant for the reaction, 2N₂O₃ → 4NO₂ + O₂ is 2 × 10⁻³ s⁻¹. If rate of reaction is 1.4 × 10⁻³ mol L⁻¹ s⁻¹, what will be the concentration of N₂O₃ in mol L⁻¹?
A
0.8
B
0.7
C
1.2
D
1
Correct Answer
Option B
Detailed Explanation
Using the rate equation rate = k[N₂O₃], we can solve for [N₂O₃] = rate/k = (1.4 × 10⁻³)/(2 × 10⁻³) = 0.7 mol L⁻¹.
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