Question

The unit of rate constant for a zero order reaction is:

• A. ${\text{mol L}}^{-1}{\text{s}}^{-1}$
• B. ${\text{L mol}}^{-1}{\text{s}}^{-1}$
• C. ${\text{L}}^2{\text{mol}}^{-2}{\text{s}}^{-1}$
• D. ${\text{s}}^{-1}$

Answer 1

The correct option is A ${\text{mol L}}^{-1}{\text{s}}^{-1}$

For zero order reaction,
$\text{Rate}=k[A{]}^0$
${\text{mol L}}^{-1}{\text{s}}^{-1}=k$
Thus, the unit of rate constant is ${\text{mol L}}^{-1}{\text{s}}^{-1}$.