Chemistry: The Central Science (13th Edition)

Published by Prentice Hall
ISBN 10: 0321910419
ISBN 13: 978-0-32191-041-7

Chapter 5 - Thermochemistry - Exercises: 5.31

Answer

w = -50.65 J

Work Step by Step

Since we are dealing with the expansion/compression of gases, the work is given by $w = -P\Delta V $. We have that the pressure is 1.0 atm and that the volume changes by 0.50L. Therefore: w = -(1.0atm)*(0.50L) = -0.5 L-atm Then to convert from L-atm to Joules we have: -0.5 L-atm * (101.3J / 1 L-atm) = -50.65 J
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