4.4 - Order of a Reaction
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Practice Questions
Test your understanding with targeted questions
Define the order of a reaction.
💡 Hint: Think about what the exponents represent in the rate expression.
What characterizes a zero-order reaction?
💡 Hint: Consider whether changing reactant concentrations would affect the rate.
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Interactive Quizzes
Quick quizzes to reinforce your learning
What does the order of a reaction indicate?
💡 Hint: Look back at the relationship between exponents and concentration.
In a zero-order reaction, what happens when concentration changes?
💡 Hint: Think about the definition of zero-order.
1 more question available
Challenge Problems
Push your limits with advanced challenges
A chemical reaction is detected to be a first-order reaction with a rate constant of 0.5 s⁻¹. If the initial concentration of the reactant is 2.0 M, what will be the concentration after 2 seconds?
💡 Hint: Don't forget to use the exponential decay formula for first-order reactions.
For a second-order reaction, if the rate constant is 0.1 M⁻¹s⁻¹ and the initial concentration of A is 0.5 M, what will be the concentration of A after 10 seconds?
💡 Hint: You need to remember the formula for second-order integrated rate law.
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