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  1. AP Chemistry
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Kinetics

Question 1
college-boardChemistryAPExam Style
1 mark

What does the symbol ΔH represent in a chemical equation?

Question 2
college-boardChemistryAPExam Style
1 mark

For a reaction A + B ⇌ C + D, which change would not affect the validity of using the steady-state approximation to analyze the system?

Question 3
college-boardChemistryAPExam Style
1 mark

In applying the steady-state approximation during catalysis, what is assumed about intermediate concentrations?

Question 4
college-boardChemistryAPExam Style
1 mark

Why would one choose to use steady state rather than equilibrium assumptions when evaluating certain enzyme-catalyzed reactions?

Question 5
college-boardChemistryAPExam Style
1 mark

If during a complex reaction mechanism, an intermediate is produced and consumed at comparably fast rates, what is a likely consequence for applying the steady-state approximation?

Question 6
college-boardChemistryAPExam Style
1 mark

Which of the following substances will most likely have the lowest vapor pressure at room temperature?

Question 7
college-boardChemistryAPExam Style
1 mark

In a reaction mechanism involving a steady state, what happens to the rate of formation of intermediates compared to their rate of consumption?

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Question 8
college-boardChemistryAPExam Style
1 mark

For a given reaction with intermediate I formed in Step 1 and consumed in Step 2, applying the steady-state approximation would affect which aspect(s) related to intermediate I?

Question 9
college-boardChemistryAPExam Style
1 mark

Considering Le Chatelier's Principle, how might increasing temperature impact use of steady state approximation in endothermic reversible reaction?

Question 10
college-boardChemistryAPExam Style
1 mark

What could happen if the concentration of an intermediate in a reaction mechanism is incorrectly assumed to be insignificant?