AP QUIZZES - AP TOPIC 15 Kinetics SET E
AP Quizzes - AP TOPIC 15 Kinetics SET E.
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QUESTION 1. A reaction that is considered to be fast is likely to have which of the following characteristics?
(A) A negative Delta H
(B) A positive Delta H
(C) A low activation energy
(D) A high activation energy
(E) A large equlibrium constant
QUESTION 2. Which of the following reactions can have a rate and a rate constant (k) with the same units?
(A) A zero order reaction
(B) A first order reaction
(C) A second order reaction
(D) No reaction can have this
(E) None of the above
QUESTION 3. In an equilbrium reaction that has been catalyzed, all of the following statements are true, EXCEPT;
(A) In the catalyzed reaction the rate of both the forward AND backward reactions are increased
(B) In the catalyzed reaction equilibrium will be achieved more quickly
(C) The catalyst will be unchanged at the end of the reaction
(D) In the catalyzed reaction K for the forward reaction will be larger
(E) The catalyst will have the effect of providing a reaction pathway with a lower activation energy
QUESTION 4. Plotting a graph of ln [reactant] versus time will give a straight line if the reaction is what, with respect to [reactant]?
(A) Zero Order
(B) First Order
(C) Second Order
(D) Third order
(E) None of the above
QUESTION 5. In the Maxwell-Boltzman distribution plot for a given reaction at two different temperatures, what can be said about the total area underneath the curve for the relatively hot temperature compared to the curve for the relatively low temperature?
(A) The area under the hot curve is greater since more particles possess the minimum activation energy required
(B) The area under the cold curve is greater since more particles possess the minimum activation energy required
(C) The areas are the same since the number of moles of gas do not change as a result of heating or cooling
(D) The areas are the same since the reaction has a fixed activation energy
(E) The areas are the same since gases occupy the same space regardless of the temperature
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