Chemistry 12th Edition

Published by McGraw-Hill Education
ISBN 10: 0078021510
ISBN 13: 978-0-07802-151-0

Chapter 12 - Physical Properties of Solutions - Questions & Problems - Page 552: 12.35


Please see the work below.

Work Step by Step

We know that in dynamic equilibrium, the number of gas molecules entering and leaving the solution are equal. When the surrounding air is replaced by helium, the number of air molecules leaving the solution is greater than the number dissolving and with the passage of time, helium concentration increases while that of dissolved air decreases.
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