Practice Chemical Kinetics (5) - Module 5: Chemical Kinetics

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9 questions

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4 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.
What is the definition of activation energy?
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What kind of energy is needed for a reaction to proceed?
Question 2.
What does collision theory state?
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Think about the requirements for a reaction to happen.
3Question 3.
What is the main focus of chemical kinetics?
- Temperature effects
- Reaction rates
- Chemical equilibrium
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Think about the definition of chemical kinetics.
4Question 4.
True or False: A catalyst is consumed in a reaction.
- True
- False
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Consider what happens to a catalyst during a reaction.
Question 5.
Given an experimental rate law Rate = k [A][B]^2, what would happen to the rate if the concentration of B is doubled?
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Consider how changing the concentration affects the rate of reaction based on the rate expression.
Question 6.
If the activation energy for a reaction is lowered by a catalyst from 75 kJ/mol to 25 kJ/mol, how does this affect the reaction rate?
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Think about the relationship between activation energy and the number of effective collisions.

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