Chemistry and Chemical Reactivity (9th Edition)

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

Chapter 8 Bonding and Molecular Structure - 8-9 Bond Properties: Order, Length, and Energy - Case Study - Questions - Page 331: 1


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Work Step by Step

One $O\equiv C$ bond is broken, converting it to a O=C bond, one O-C bond is broken but one is formed along with a C-C bond, so overall: $H_{O\equiv C}-H_{O=C}-H_{C-C}=$ $1046-745-346=-45\ kJ/mol$ It's an exothermic reaction.
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