Question

What is the overall order of the reaction which has the following rate expression? Rate = k[A]$^\frac{1}{2}$[B]$^\frac{3}{2}$

• A. One
• B. Two
• C. Zero
• D. Three

Answer 1

Answer: (D)

Three

Answer 2

the rate expression:
Rate = k[A]$^\frac{1}{2}$[B]$^\frac{3}{2}$
The order with respect to A is $\frac{1}{2}$ and with respect to B is $\frac{3}{2}$. \\\ The overall order is obtained by summing the exponents: $\frac{1}{2} + \frac{3}{2} = 2$.