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The rate law for a reaction is given as rate = k[A][B]². What is the overall ord

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Question: The rate law for a reaction is given as rate = k[A][B]². What is the overall order of the reaction?

Options:

  1. 1
  2. 2
  3. 3
  4. 4

Correct Answer: 3

Solution: 

The overall order of the reaction is the sum of the powers of the concentration terms, which is 1 + 2 = 3.

The rate law for a reaction is given as rate = k[A][B]². What is the overall ord

Practice Questions

Q1
The rate law for a reaction is given as rate = k[A][B]². What is the overall order of the reaction?
  1. 1
  2. 2
  3. 3
  4. 4

Questions & Step-by-Step Solutions

The rate law for a reaction is given as rate = k[A][B]². What is the overall order of the reaction?
  • Step 1: Identify the rate law given in the question, which is rate = k[A][B]².
  • Step 2: Look at the concentration terms in the rate law. Here, [A] has a power of 1 and [B] has a power of 2.
  • Step 3: Add the powers of the concentration terms together. So, 1 (from [A]) + 2 (from [B]) = 3.
  • Step 4: The overall order of the reaction is the total sum of the powers, which is 3.
  • Rate Law – The rate law expresses the relationship between the rate of a chemical reaction and the concentration of its reactants, with each concentration raised to a power that reflects its contribution to the reaction rate.
  • Overall Order of Reaction – The overall order of a reaction is determined by summing the exponents of the concentration terms in the rate law.
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