Chemistry: A Molecular Approach (3rd Edition)

Published by Prentice Hall
ISBN 10: 0321809246
ISBN 13: 978-0-32180-924-7

Chapter 13 - Sections 13.1-13.7 - Exercises - Review Questions - Page 637: 6

Answer

Zero Order: $Rate=k$ If the concentration is doubled, the rate will be the same. First Order: $Rate=k[A]$ If the concentration is doubled, the rate will double. Second Order: $Rate=k[A]^{2}$ If the concentration is doubled, the rate will quadruple.

Work Step by Step

Zero order reactions are independent of concentration so their rate law is always $Rate=k$. First order reactions are proportional to concentration so their rate is equal to the rate constant multiplied by the concentration. Second order reactions are proportional to the concentration squared so their rate is equal to the rate constant multiplied by the concentration squared. Basically, the order of the reaction is x where $Rate=k[A]^{x}$.
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