Units of kHardQuestion 720013
Question
For a second-order reaction, the unit of k is:
- AL mol⁻¹ s⁻¹Correct
- Bmol L⁻¹ s⁻¹
- Cs⁻¹
- Dmol⁻¹ L s⁻¹
Correct answer
L mol⁻¹ s⁻¹
Explanation
For nth order: unit of k = (mol L⁻¹)^(1−n) s⁻¹. For n = 2: (mol L⁻¹)^(−1) s⁻¹ = L mol⁻¹ s⁻¹.