Problem 1
The rate constant of a reaction depends on a. Extent of reaction b. Time of reaction c. Temperature d. Initial concentration of the reactants
Problem 3
The specific rate constant of a first order reaction depends on the a. temperature b. time c. concentration of the reactant d. concentration of the product
Problem 4
For a zeroth-order reaction: \(\mathrm{C} \rightarrow\) products, \(-\Delta[\mathrm{C}] / \Delta \mathrm{t}\) \(=k\), which of the following graphs would be expected to give a straight line? a. \([\mathrm{C}]^{2}\) vs \(\mathrm{t}\) b. \([\mathrm{C}]\) vs \(\mathrm{t}\) c. In \([\mathrm{C}]\) vs \(\mathrm{t}\) d. \(1 /[\mathrm{C}]\) vs \(\mathrm{t}\)
Problem 5
For the zeroth-order reaction: \(\mathrm{A} \rightarrow\) products, what will happen to the rate of reaction if the concentration A is doubled? a. The rate will be doubled b. The rate will be halved c. The rate will remain the same d. The rate will be quadrupled
Problem 6
\(3 \mathrm{~A} \rightarrow 2 \mathrm{~B}\), rate of reaction \(+\mathrm{d}(\mathrm{B})\) is equal to \(\mathrm{dt}\) a. \(-\frac{3}{2} \frac{\mathrm{d}[\mathrm{A}]}{\mathrm{dt}}\) b. \(-\frac{2}{3} \frac{\mathrm{d}[\mathrm{A}]}{\mathrm{dt}}\) c. \(-\frac{1}{3} \frac{\mathrm{d}[\mathrm{A}]}{\mathrm{dt}}\) d. \(+2 \frac{\mathrm{d}[\mathrm{A}]}{\mathrm{dt}}\)
Problem 7
The elementary reaction: \(2 \mathrm{HI} \rightarrow \mathrm{H}_{2}+\mathrm{I}_{2}\), is an example of a reaction. a. Tetramolecular b. Termolecular c. Bimolecular d. Unimolecular
Problem 8
Activation energy of a chemical reaction can be determined by a. evaluating rate constant at standard temperature b. evaluating velocities of reaction at two different temperatures c. evaluating rate constants at two different temperatures d. changing concentration of reactants
Problem 9
The elementary reaction representing the formation of ozone: \(\mathrm{O}_{2}(\mathrm{~g})+\mathrm{O}(\mathrm{g})+\mathrm{M}(\mathrm{g}) \rightarrow \mathrm{O}_{3}(\mathrm{~g})+\mathrm{M}^{*}(\mathrm{~g})\) is an example of reaction. a. Tetramolecular b. Termolecular c. Bimolecular d. Unimolecular
Problem 10
Catalyst is a substance which a. supplies energy to the reaction b. increases the equilibrium concentration of the product c. changes the equilibrium constant of the reaction d. shortens the time to each equilibrium
Problem 11
Which statement below regarding the half-life of a second order reaction is true? a. The length of the half life remains unchanged throughout the course of the reaction. b. Each half life is four times as long as the preceding one. c. Each half life is half as long as the preceding one. d. Each half life is twice as long as the preceding one.
