Question

What is the order of a reaction which has a rate expression $rate=k\left[A{]}^{\frac{3}{2}}\right[B{]}^{-1}$?

• A. $3/2$
• B. $1/2$
• C. $0$
• D. None of the above

Answer 1

Answer: (B)

$1/2$

The rate expression is:

$rate=k\left[A{]}^{\frac{3}{2}}\right[B{]}^{-1}.$

The overall order of the reaction is the sum of all the powers in rate expression.

Overall order $n=\frac{3}{2}-1$

$n=\frac{1}{2}$.