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:**Bond Dissociation Energy of CH₄**
The bond dissociation energy, in kilojoules (kJ), needed to break 4 bond(s) in 1 mole of CH₄ molecules is determined using the given data.
**Table of Bond Dissociation Energies (in kJ/mol):**
- **Single Bonds**
- H-H: 432
- C-H: 411
- C-C: 346
- C-N: 305
- C-O: 358
- N-H: 386
- N-N: 163
- N-O: 201
- O-H: 459
- O-O: 142
- **Multiple Bonds**
- C=C: 602
- C≡C: 835
- C=N: 615
- C≡N: 887
- C=O: 799
- C≡O: 1072
- N=N: 494
- N≡N: 942
**Note:** All values are in kJ/mol.
To calculate the total energy to break all C-H bonds in CH₄, multiply the C-H bond energy (411 kJ/mol) by 4, since there are four C-H bonds in methane.
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