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MCAT

Lekcja 18: Kinetyka

Kinetics questions

Using the following data, which is the correct rate law of the sample reaction?

A + 5B + 6C → 3D + 3E

Experiment	[A] (M)	[B] (M)	[C] (M)	Initial Rate (M/s)
1	0.35	0.35	0.35	8.0 x 10start superscript, start text, negative, 4, end text, end superscript
2	0.70	0.35	0.35	3.2 x 10start superscript, start text, negative, 3, end text, end superscript
3	0.70	0.70	0.35	6.4 x 10start superscript, start text, negative, 3, end text, end superscript
4	0.70	0.35	0.70	3.2 x 10start superscript, start text, negative, 3, end text, end superscript

(Choice A)
R=k[A]start superscript, start text, 2, end text, end superscript [B]start superscript, start text, 1, end text, end superscript [C]start superscript, start text, 1, end text, end superscript
(Choice B)
R=k[A]start superscript, start text, 4, end text, end superscript [B]start superscript, start text, 2, end text, end superscript [C]start superscript, start text, 1, end text, end superscript
(Choice C)
R=k[A]start superscript, start text, 2, end text, end superscript [B]start superscript, start text, 1, end text, end superscript [C]start superscript, start text, 0, end text, end superscript
(Choice D)
R=k[A]start superscript, start text, 1, end text, end superscript [B]start superscript, start text, 2, end text, end superscript [C]start superscript, start text, 0, end text, end superscript

Nie wiesz, jak rozwiązać to zadanie?