Answer
$\Delta$U =-46 J.
Work Step by Step
w= +47 J (positive because work is done on the system)
q= -93 J (negative because heat is evolved to the surroundings.)
$\Delta U$ = q+w = -93 J+ 47 J = -46 J.
Chemistry (4th Edition)
by Burdge, Julia
Published by
McGraw-Hill Publishing Company
ISBN 10:
0078021529
ISBN 13:
978-0-07802-152-7
Chapter 5 - Questions and Problems - Page 221: 5.13
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