Chemistry (12th Edition)

Published by Prentice Hall
ISBN 10: 0132525763
ISBN 13: 978-0-13252-576-3

Chapter 15 - Water and Aqueous Systems - 15 Assessment: 110

Answer

When pressure is increased, the molecules on the surface of the water need more kinetic energy to escape the liquid. So the boiling point rises. When pressure is decreased, the molecules on the surface of the water need less kinetic energy to escape the liquid. So the boiling point lowers. 1.27 atm

Work Step by Step

When pressure is increased, the molecules on the surface of the water need more kinetic energy to escape the liquid. So the boiling point rises. When pressure is decreased, the molecules on the surface of the water need less kinetic energy to escape the liquid. So the boiling point lowers. Write down the known values and the unknown values. Make sure to convert Celsius into Kelvins. Use Gay-Lussac's Law to solve for the unknown final pressure.
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