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 - Problems - Page 409: 26

Answer

$0.316L$

Work Step by Step

The additional heat from the person causes the water to evaporate. the water is at approximately room temperature, so use the heat of vaporization at room temperature as discussed on page 399. $$Q=mL_v$$ $$m=\frac{Q}{L_v}=\frac{185kcal}{585kcal/kg}=0.316kg=0.316L$$
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