Answer
$V=263.7\ L/week$
Work Step by Step
$E=\$85/year\div\$0.113/kWh=752.2\ kWh/year=14.47\ kWh/week$
$Q=0.91.E=47,389\ kJ/week$
$Q=mc\Delta T,\ c=4.18\ kJ/kg.°C,\ \Delta T=(55-12)°C=43°C$
$m=263.7\ kg/week=\rho.V$
$V=263.7\ L/week$
Thermodynamics: An Engineering Approach 8th Edition
by Cengel, Yunus; Boles, Michael
Published by
McGraw-Hill Education
ISBN 10:
0-07339-817-9
ISBN 13:
978-0-07339-817-4
Chapter 6 - The Second Law of Thermodynamics - Problems - Page 324: 6-146
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