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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