Physics: Principles with Applications (7th Edition)

Published by Pearson
ISBN 10: 0-32162-592-7
ISBN 13: 978-0-32162-592-2

Chapter 14 - Heat - Questions: 11

Answer

Snow contains pockets of air, which provide insulation and help prevent heat loss.

Work Step by Step

Snow contains many air pockets, and air is a good insulator. The explorers were using snow like a goose down-filled jacket (which has a low thermal conductivity due to the air trapped between the feathers). A layer of insulating, puffy snow would also shield the explorers from wind, mitigating heat loss by convection.
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