Chemistry: The Molecular Nature of Matter and Change 7th Edition

Published by McGraw-Hill Education
ISBN 10: 007351117X
ISBN 13: 978-0-07351-117-7

Chapter 9 - Problems: 9.46

Answer

See explanation below.

Work Step by Step

More C - H bonds are going to be broken per mole of ethanol of the Methanol. Therefore, since C = O and H - O bonds are formulated per mole of ethanol, the Enthalpy of combustion equates to bond creation - bond breakage.
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