Answer to Question #278477 in Chemistry for michelle

Question

For a second-order reactant, if the concentration of the reactant is quadrupled, the rate would? 

1. triple
2. multiply by 16
3. quadruple
4. multiply by 8
5. double

Answer 1

Solution:

A reaction is second order with respect to a reactant.

rate =k[A]²

If the concentration of the reactant is quadrupled, the rate of reaction becomes 16 times.

rate' = k[4 × A]² = 16k[A]²

Answer: 2) multiply by 16