Practice Experimental Determination Of Rate Laws (4.1) - Unit 6: Chemical Kinetics

Practice: Experimental Determination of Rate Laws

Lesson 4.1Unit 6: Chemical Kinetics

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9 questions

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6 sample questions

Question 1.
What is a rate law?
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Think about the relationship between concentration and reaction speed.
Question 2.
In the rate law Rate = k[A]^2[B], what is the order with respect to A?
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Look at the exponent of A in the rate law.
3Question 3.
Which of the following correctly describes a rate law?
- It states how temperature affects reaction rate.
- It expresses the relationship between reactant concentrations and reaction rate.
- It only applies to first-order reactions.
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Focus on how reactants influence the speed of reactions.
4Question 4.
True or False: The reaction orders in the rate law are always equal to the stoichiometric coefficients.
- True
- False
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Think about how experiments might show different behaviors.
5Question 5.
A reaction has the following initial rates recorded for different concentrations:
1. [A] = 1M, [B] = 1M, Rate = 0.1 M/s
2. [A] = 2M, [B] = 1M, Rate = 0.4 M/s
3. [A] = 1M, [B] = 2M, Rate = 0.4 M/s Determine the rate law for the reaction.
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Compare how each change in concentration alters the rate.
Question 6.
Explain why the rates calculated from the initial rate method might differ from those calculated later in the reaction.
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Consider what happens as reactants are used up during the reaction.

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