Skip to content
New summer mock series is live Attempt timed papers for SSC, banking, and engineering entrances with updated syllabi for this season. View exams

Question

A second-order reaction has a half-life of 40 s when the initial concentration is 0.1 mol L⁻¹. What is the rate constant?

Options

Choose one · Correct answer highlighted

Explanation

k = 1/(t½ [A]₀) = 1/(40×0.1) = 0.25 L mol⁻¹ s⁻¹.