Question

A reaction becomes 27 times faster when the concentration is increased 3 times. What is the order of the reaction?

Answer 1

SoluTion :-

$\sf {Let\ r = k[A]n}$

According to question

$\sf {27r = k[3A]n}$

$\sf {\frac{27r}{r}= \frac{k[3A]^{n}}{{k[A]^{n}}}$

$\sf {Or,}$

$\sf {3^{3}=3^{n}}$

∴ Order of Reaction = n = 3