Question

What is the rate law if the rate is directly proportional to \([B]^2\) and independent of \([A]\)?

• A. \( \text{Rate} = k[B]^2 \)
• B. \( \text{Rate} = k[A][B]^2 \)
• C. \( \text{Rate} = k[A]^2[B] \)
• D. \( \text{Rate} = k[A]^2[B]^2 \)

Hint:

The rate law expresses the dependence of the reaction rate on the concentrations of reactants. In this case, it is only dependent on \(B\).

Answer 1

The Correct Option is A

The problem states that the rate is directly proportional to the square of the concentration of \(B\) and is not affected by the concentration of \(A\). Therefore, the rate law is expressed as:\[\text{Rate} = k[B]^2,\]with \(k\) representing the rate constant.