Chemistry: The Central Science (13th Edition)

Published by Prentice Hall
ISBN 10: 0321910419
ISBN 13: 978-0-32191-041-7

Chapter 15 - Chemical Equilibrium - Exercises: 15.19b

Answer

False, K would be large

Work Step by Step

For the reaction: aA +bB cC + dD the expression for K would be K = $\frac {[C]^c[D]^d} {[A]^a[B]^b}$ If the equilibrium constant had a value of 0, it would imply that the concentration of (one of) the products is equal to 0. This would mean that the reaction does not proceed as written. When an equation is drawn with a single-headed arrow, it means that the reaction proceeds almost to completion, and therefore the concentration of the products is very large and the concentration of the reactants is small. This would make K a very large number.
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