In a reaction if the concentration of reactant A is tripled, the rate of reaction becomes twenty seven times. What is the order of reaction?

Explanation

`r_(1)=k[A]^(alpha)=ka^(alpha),r_(2)=k(3" a")^(alpha),(r_(2))/(r_(1))=3^(alpha)=27("Given")=3^(3):.alpha=3.`