11. The reaction 2D + 3X B + 3 Y has a rate law rate-k mol L1 k[D][X]. The units

Question

11. The reaction 2D + 3X B + 3 Y has a rate law rate-k mol L1 k[D][X]. The units for the rate constant mol-L-12 12. If an equilibrium constant is larger than the reactio product formation to return to equilibrium quotient then the reaction favors a. True b. False 13. A catalyst increases the rate of a reaction by: a. Changing the value of the frequency factor (A) b. c. Decreasing the overall activation energy of the reaction d. Changing the temperature of reaction creasing the overall activation energy of the reaction 14. Kea is related to the rate constants of reversible reactions. a. True b. False 15. An acceptable rate law of a multistep reaction a. Is the rate law of the first step when the first step is rate determining b. Is the rate law of the first step when the second step is rate determining c. Is the rate law of the second step when the first step is rate determining d. Is the rate law of the second step when the second step is rate determining 16. Sulfuric acid and the sulfate ion are an acid-base conjugate pair. a. True b. False 17. In a reversible reaction: a. The rate constants of the forward and reverse reactions are the inverse of each other b. The rate constants of the forward and reverse reactions are equal to each other c. The reaction rates of the forward and reverse reaction are the inverse of each other d. The reaction rates of the forward and reverse reaction are equal to each other 18. A diprotic acid has one equivalence point on its titration curve. a. True b. False 19. A Lewis acid is (pick the best answer): a. A proton donor b. An electron-pair donor c. A proton acceptor d. An electron-pair acceptor 20. The K of a salt increases with the presence of a common ion. a. True -b. False

Explanation / Answer

11.

write unit of all the given variables

rate = mol.L.s-1 = k [mol.L-1][mol.L-1]

k = [mol.L]s-1/[mol.L-1][mol.L-1] = L.mol-1s-1

Ans = b

12.

Q<Kc reaction favours forward

Q = reaction quotient

Kc = equilibrium constant

13.

(c) overall decrease in activation energy

14.

Keq = Kf/Kr

Kf = forward reaction rate

Kr = reverse rate reaction

true

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