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The rate of a reaction is directly proportional to the product of the concentrat

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Question: The rate of a reaction is directly proportional to the product of the concentrations of the reactants raised to their respective powers. This statement defines which of the following? (2020)

Options:

  1. Rate law
  2. Equilibrium constant
  3. Le Chatelier\'s principle
  4. Reaction mechanism

Correct Answer: Rate law

Exam Year: 2020

Solution: 

This statement defines the rate law of a reaction.

The rate of a reaction is directly proportional to the product of the concentrat

Practice Questions

Q1
The rate of a reaction is directly proportional to the product of the concentrations of the reactants raised to their respective powers. This statement defines which of the following? (2020)
  1. Rate law
  2. Equilibrium constant
  3. Le Chatelier's principle
  4. Reaction mechanism

Questions & Step-by-Step Solutions

The rate of a reaction is directly proportional to the product of the concentrations of the reactants raised to their respective powers. This statement defines which of the following? (2020)
  • Step 1: Understand that a chemical reaction involves reactants that change into products.
  • Step 2: Know that the rate of a reaction is how fast the reactants turn into products.
  • Step 3: Learn that the rate of a reaction can depend on the concentrations of the reactants.
  • Step 4: Recognize that 'directly proportional' means if you increase the concentration of a reactant, the rate of the reaction increases.
  • Step 5: Understand that the phrase 'raised to their respective powers' means that each reactant's concentration is multiplied by itself a certain number of times, which is determined by the reaction.
  • Step 6: Combine these ideas to see that the statement describes a mathematical relationship that shows how the rate of a reaction depends on the concentrations of the reactants.
  • Step 7: Conclude that this mathematical relationship is known as the 'rate law' of a reaction.
  • Rate Law – The mathematical expression that relates the rate of a reaction to the concentrations of reactants, each raised to a power corresponding to their stoichiometric coefficients.
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