Answer
$21.6\ MJ$
Work Step by Step
We find the mass that the water loses in three hours, recalling that 1L of water weighs 1 kg:
$ m = (3kg/h)(3h)=9kg$
We can now find Q:
$ Q = mL = (2.4MJ/kg)(9kg)=21.6\ MJ$
Essential University Physics: Volume 1 (3rd Edition)
by Wolfson, Richard
Published by
Pearson
ISBN 10:
0321993721
ISBN 13:
978-0-32199-372-4
Chapter 17 - Exercises and Problems - Page 314: 54
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