Explanation Given Mass of ethanol is 15.0 g . Molar mass of ethanol is 46.0 g/mol . The complete combustion of ethanol proceeds as follows, C 2 H 5 OH ( l ) + 3 O 2 ( g ) → 2 CO 2 + 3H 2 O ( l ) Δ H = − 555 kJ The enthalpy change for 1 mol of ethanol is − 555 kJ . Molar mass of ethanol is 46.0 g/mol . Therefore, the combustion of 46.0 g ethanol is accompanied by an enthalpy change of − 555 kJ

Chemistry: The Central Science, Books a la Carte Plus MasteringChemistry with eText -- Access Card Package (13th Edition)

13th Edition

ISBN: 9780321934826

Author: Theodore E. Brown, H. Eugene LeMay, Bruce E. Bursten, Catherine Murphy, Patrick Woodward, Matthew E. Stoltzfus

Publisher: PEARSON

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Chapter 5.5, Problem 5.5.1PE

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The enthalpy change for combustion of the given 15.0 g of ethanol.

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Chapter 5.4, Problem 5.4.2PE

Chapter 5.5, Problem 5.5.2PE

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Chapter 5 Solutions

Chemistry: The Central Science, Books a la Carte Plus MasteringChemistry with eText -- Access Card Package (13th Edition)

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The enthalpy change for combustion of the given 15.0 g of ethanol.

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To determine: The enthalpy change for combustion of the given 15.0 g of ethanol.

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Chapter 5 Solutions

To determine:

The enthalpy change for combustion of the given 15.0 g of ethanol.