alleryThe units of the rate constant k for a first-order reaction are:
AL² mol⁻² s⁻¹
Bs⁻¹
Cmol L⁻¹ s⁻¹
DL mol⁻¹ s⁻¹
Answer & Solution
Correct answer: B. s⁻¹
First-order: Rate = k[A] → k = Rate/[A] = (mol L⁻¹ s⁻¹)/(mol L⁻¹) = **s⁻¹**.
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