Answer
B
Work Step by Step
Energy balance:
$Q-W_e=\Delta U$
$Q=-300\ kJ,\ W_e=-2kW\times 10min\times60s/min=-1200\ kJ$
$\Delta U=900\ kJ=mc_v\Delta T$
$m=5\ kg,\ c_v=4.18\ kJ/kg.K$
$\Delta T=46.06°C$
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 4 - Energy Analysis of Closed Systems - Problems - Page 210: 4-153
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