What is the rate law expression for a reaction with the rate equation rate = k[A

Practice Questions

Q1
What is the rate law expression for a reaction with the rate equation rate = k[A]^2[B]?
  1. rate = k[A][B]
  2. rate = k[A]^2
  3. rate = k[A]^2[B]
  4. rate = k[B]

Questions & Step-by-Step Solutions

What is the rate law expression for a reaction with the rate equation rate = k[A]^2[B]?
  • Step 1: Identify the rate equation given, which is rate = k[A]^2[B].
  • Step 2: Recognize that the rate law expression shows how the rate depends on the concentration of reactants.
  • Step 3: In the rate equation, 'k' is the rate constant, '[A]' is the concentration of reactant A, and '[B]' is the concentration of reactant B.
  • Step 4: The exponent of '[A]' is 2, which means the rate is proportional to the square of the concentration of A.
  • Step 5: The exponent of '[B]' is 1, which means the rate is directly proportional to the concentration of B.
  • Step 6: Combine these observations to write the rate law expression as: rate = k[A]^2[B].
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