The icecaps of Greenland and Antarctica contain about

University Physics | 13th Edition | ISBN: 9780321675460 | Authors: Hugh D. Young, Roger A. Freedman

Problem 121P Chapter 17

University Physics | 13th Edition

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University Physics | 13th Edition | ISBN: 9780321675460 | Authors: Hugh D. Young, Roger A. Freedman

University Physics | 13th Edition

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Problem 121P

The icecaps of Greenland and Antarctica contain about 1.75% of the total water (by mass) on the earth’s surface; the oceans contain about 97.5%, and the other 0.75% is mainly groundwater. Suppose the icecaps, currently at an average temperature of about – 30o C, somehow slid into the ocean and melted. What would be the resulting temperature decrease of the ocean? Assume that the average temperature of ocean water is currently 5.00o C.

Step-by-Step Solution:

Solution 121P Step 1: Mass of water on the surface of Earth = M Mass of ice caps M i = 1.75 % of M Mass of water in the ocean M w = 97.5 % of M Temperature of water T W = 5°C Temperature of ice caps T = -30°C I Specific heat of ice c =i2100 J/Kg Specific heat of water c = 4190 J/Kg w 5 Latent heat of ice L = f.34x10 J/Kg Step 2: To find the resulting temperature decrease of ocean Changes in temperature and phase The formula is M w c w T W + M c i T i I + M Li= 0f T W = T - T W T = T - T I I Step 3: Rearranging the above equation, we get the final temperature M w w W + M i i IM iL f T = M w w+ M i i

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Chapter 17, Problem 121P is Solved
Step 5 of 6

Textbook: University Physics
Edition: 13
Author: Hugh D. Young, Roger A. Freedman
ISBN: 9780321675460

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