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: 15.25b


Kp = 3.423

Work Step by Step

We are interested in Kp for the reaction 2SO$_2$ + O$_2$ 2SO$_3$ Which is 2 times the original reaction. Since both the reactants and the products now have double their original stoichiometric coefficients, this will result in the original expression of Kp being squared (since the concentrations are raised to their coefficients in the expression for Kp). Therefore, if the original Kp is 1.85, the new Kp would be 1.85 squared, which is 3.423.
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