Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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Transcribed Image Text:↑
BCPS Links S BCPS Schoology History f/v[pppppp
H
H
O 2532 kJ/mol
O 3466 kJ/mol
H
O 5064 kJ/mol
H
Total Energy Transferred Out (negative)
O-H
O-H

Transcribed Image Text:Using the table of average bond energies, determine the total bond energy for the products in the combustion of ethene:
→ 2CO2 + 2 H2O
Bond
Average Bond Energies (per mole of bonds)
C-H C-C C=C
0-H
Bond energy (kJ/mol)
Molecular Structure
O=CIO
O=C=O
H-H
432 413 347
Bond Broken
C=O
C=O
614 467
Bond Energy
(kJ/mol)
C-0 C=0 0-0 0-0
358 799* 495
Number
of Bonds
Broken
C₂H4 + 3 O₂ -
Net Energy
(kJ/mol)
146
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