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At the top of Mount Everest, water boils at 70 °C. Explain

Introductory Chemistry | 5th Edition | ISBN: 9780321910295 | Authors: Nivaldo J Tro ISBN: 9780321910295 34

Solution for problem 48P Chapter 12

Introductory Chemistry | 5th Edition

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Introductory Chemistry | 5th Edition | ISBN: 9780321910295 | Authors: Nivaldo J Tro

Introductory Chemistry | 5th Edition

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Problem 48P

PROBLEM 48P

At the top of Mount Everest, water boils at 70 °C. Explain.

Step-by-Step Solution:
Step 1 of 3

Solution 48P

As increase in height (altitude), the atmospheric pressure decreases. This is because, at higher altitudes, the weight of air above you is less, so the pressure  is lower.

At the top of Mount Everest, the atmospheric pressure is about one-third  of what it is at sea level.

On the other hand, boiling occurs when the vapour pressure exerted by water is equal to the atmospheric pressure. So boiling is easier at lower temperature when the pressure is lower.at a lower pressure, water boils at a lower temperature. So at the  top of Mount Everest, atmospheric pressure is lower due to the altitude, which results the lowering of boiling temperature ( 70 °C) of water.

Step 2 of 3

Chapter 12, Problem 48P is Solved
Step 3 of 3

Textbook: Introductory Chemistry
Edition: 5
Author: Nivaldo J Tro
ISBN: 9780321910295

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At the top of Mount Everest, water boils at 70 °C. Explain