Question

The rate of the reaction, $A+B+C$ $\to$ $P$ is given by :
$r=-\frac{d\left[A\right]}{dt}$ $=k{\left[A\right]}^{1/2}$ ${\left[B\right]}^{1/2}$ ${\left[C\right]}^{1/4}\cdot$ The order of the reaction is

• A. 1
• B. 2
• C. 1/2
• D. 5/4

Answer 1

Answer: (D)

As we know,
For a reaction, $A+B\to$ Product, if rate $=K[A{]}^m[B{]}^n$, the order of reaction $=m+n$.
So here for the given reaction, order of reaction $=1/2+1/2+1/4=5/4$