Practice Dependence Of Rate On Concentration (3.2.1)

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6 sample questions

Question 1.
Define the rate of a reaction.
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Think about how we measure changes over time.
Question 2.
What is the rate law?
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Consider how scientists express the relationship between rates and concentrations.
3Question 3.
What is the rate of a reaction?
- Change in concentration per unit time
- Amount of energy involved
- Speed of molecules
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Think about what happens to concentrations during a reaction.
4Question 4.
True or False: The order of a reaction can be calculated from the balanced equation.
- True
- False
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Consider why we need experimental data to establish reaction order.
Question 5.
Given the rate law Rate = k [A]^2 [B], if [A] is doubled and [B] remains constant, how will the rate change?
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Consider how the change in concentration of A affects the rate.
Question 6.
A zero-order reaction has a rate constant k = 3 mol L‒1 s‒1. If the initial concentration of reactant R is 1 mol L‒1, how long will it take for the concentration to fall to 0.2 mol L‒1?
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Use the zero-order integrated rate equation.

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