Practice Reaction Order, Rate Constant, And Units (4.2)

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9 questions

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2 cards from this section. Quick, good the night before a test.
Exercise
6 questions · about 4 min · pass mark 70%. Hints available.
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Quiz
3 questions · about 2 min · pass mark 70%. Hints available.
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6 sample questions

Question 1.
Define reaction order.
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Think about the power in an expression.
Question 2.
What are the units for a first-order reaction rate constant?
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Consider how the rate relates to time.
3Question 3.
What does the reaction order indicate?
- The total amount of reactant
- How concentration changes affect the rate
- The temperature of the reaction
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Focus on the relationship aspect.
4Question 4.
True or False: The units of rate constant k change based on the reaction order.
- True
- False
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Consider the relation of rates and concentrations.
Question 5.
You have a reaction with a first-order rate constant of 0.05 s⁻¹. How long will it take for the concentration of the reactant to decrease from 0.1 M to 0.025 M?
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Focus on the integrated form of the first-order rate equation.
Question 6.
For a zero-order reaction, if the initial concentration is 0.30 M and the rate constant is 0.10 M/s, calculate the time taken to reach a concentration of 0.15 M.
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Think about how zero-order affects the rate.

5 more questions in this section. Enroll free to practise them all.