Chemistry and Chemical Reactivity (9th Edition)

Published by Cengage Learning
ISBN 10: 1133949649
ISBN 13: 978-1-13394-964-0

Chapter 12 The Solid State - 12-6 Phase Changes Involving Solids - Review & Check for Section 12-6 - Page 463: 2

Answer

B

Work Step by Step

Heat removal required: $100\ g\times 4.20\ J/g.K \times 20\ K=8400\ J=8.4\ kJ$ Amount of dry ice required: $8.4\ kJ \div 25.2\ kJ/mol\times 44.01\ g/mol=14.67\ g$
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