Question

The rate of reaction between $A$ and $B$ increases by a factor of $100$, when the concentration of $A$ is increased $10$ folds. The order of reaction with respect to $A$ is:

• A. $10$
• B. $2$
• C. $1$
• D. $20$

Answer 1

The correct option is B $2$

${\vartheta }_{old}=k{\left[A\right[}^n;{\vartheta }_{new}=k{\left[10A\right]}^n\frac{{\vartheta }_{new}}{{\vartheta }_{old}}=100={10}^{n}n=2$