Practice question
Question
A zero-order reaction takes 50 s to reduce the concentration from 0.2 mol L⁻¹ to 0.15 mol L⁻¹. What is the rate constant?
Explanation
k = ([R]₀ − [R])/t = 0.05/50 = 1.0 × 10⁻³ mol L⁻¹ s⁻¹.
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