Chemistry: The Central Science (13th Edition)

by Brown, Theodore E.; LeMay, H. Eugene; Bursten, Bruce E.; Murphy, Catherine; Woodward, Patrick; Stoltzfus, Matthew E.

Published by Prentice Hall

ISBN 10: 0321910419

ISBN 13: 978-0-32191-041-7

Chapter 18 - Chemistry of the Environment - Exercises - Page 807: 18.46b

Answer

At 30 degree oxygen solubility is about 7.75 ppm. At 20 degree solubility increases to about 9.25 ppm. This data reflects that water reservoirs with lower temperatures are of superior quality oxygen levels as compared to that having higher temperatures. Moreover, surface water will have less oxygen dissolved as compared to the water beneath it.

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