Multiple choice

What are the units of k for the rate law: Rate = k[A][B]2, when the concentration unit is mol/L?

  1. s-1

  2. L mol-1 s-1

  3. L2 mol-2 s-1

  4. L2 s2 mol-2
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The rate is in mol/L/s. Given rate = k[A][B]^2, the units are (mol/L/s) = k * (mol/L) * (mol/L)^2. Solving for k gives L^2 mol^-2 s^-1.

Keep practicing — related questions