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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What is a first order reaction?
💡 Hint: Think about how the rate changes as reactant concentration changes.
Question 2
Easy
How do you calculate half-life for a first order reaction?
💡 Hint: What does the constant 'k' represent in this formula?
Practice 4 more questions and get performance evaluation
Interactive Quizzes
Engage in quick quizzes to reinforce what you've learned and check your comprehension.
Question 1
What defines a first-order reaction?
- Rate depends on concentration squared
- Rate depends on concentration half taken
- Rate depends on concentration of one reactant
💡 Hint: Focus on the definition of first-order reactions discussed.
Question 2
Is the half-life for a first-order reaction dependent on the initial concentration?
- True
- False
💡 Hint: Recall the formula for half-life for first-order reactions.
Solve and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
A first-order reaction has a half-life of 30 minutes. What will be the concentration after 90 minutes if the initial concentration is 1M?
💡 Hint: Calculate how many half-lives fit into 90 minutes.
Question 2
If k for a reaction is 0.1 min-1, calculate the rate of reaction when [R] is 0.5M.
💡 Hint: Plug the values into the rate formula directly!
Challenge and get performance evaluation