Question

The unit of rate constant depends upon

• A. rate of reaction
• B. order of reaction
• C. molecularity of reaction
• D. All of the above

Answer 1

Answer: (B)

order of reaction

Answer 2

$r = k[A]^x[B]^y$
$\frac{dx}{dt} = k[A]^x[B]^y$
\hspace15mm \frac{mol \, L^{-1}}{sec} = k (mol \, L^{-1})^x (mol \, L^{-1})^y
\hspace20mm k = (mol \, L^{-1})^{1-(x + y)} \, s^{-1}
where (x + y) is the order.