For a first order reaction A → B, the reaction rate at reactant concentration of 0.01 M is found to be 2.0 × 10⁻⁵ mol L⁻¹ s⁻¹. The half life period of the reaction is :

Question

Dr. Abubacker · Accepted Answer

[Solution from source] For first order, rate = k[A], so k = 2 × 10⁻⁵/0.01 = 2 × 10⁻³ s⁻¹. t½ = 0.693/k = 346.5 ≈ 347 s. Answer (4).

Q. For a first order reaction A → B, the reaction rate at reactant concentration of 0.01 M is found to be 2.0 × 10⁻⁵ mol L⁻¹ s⁻¹. The half life period of the reaction is :

Explanation

Reviewed by Dr. Abubacker

Want to attempt the full paper?