Question

A reaction is found to have the rate constant x $se{c}^{-1}$. By what factor the rate is increased if initial conc. of A is tripled?

• A. $3$
• B. $9$
• C. x
• D. Remains same

Answer 1

The correct option is A $3$

The Unit of rate constant is ${sec}^{-1}$. So, its a 1st Order Reaction.

So,

$rate=x\times \left[A\right]$

When Initial conc. of A is tripled, the rate also increases by a factor of 3.