Practice question
Question
A zero-order reaction has a rate constant of 5.0 × 10⁻⁴ mol L⁻¹ s⁻¹. If the initial concentration is 0.2 mol L⁻¹, how long will it take for 20% decomposition?
Explanation
t = (0.2 − 0.16)/(5.0×10⁻⁴) = 80 s.
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