Question

For the reaction A + B $\to$ C, it is found that doubling the concentration of A increases the rate by 4 times and doubling the concentration of B doubles the reaction rate. What is the overall order of the reaction?

• A. 4
• B. $\frac{3}{2}$
• C. 3
• D. 1

Answer 1

The correct option is C 3

rate =$k\left[A{]}^x\right[B{]}^y$
$\begin{array}{cc}4=k[2{]}^x& 2=k[2{]}^y\\ x=2& y=1\end{array}$