Practice: Consider the following equation:
Determine the bond enthalpy value for the F–S bond.
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|---|---|---|---|
| Lewis Dot Symbols | 10 mins | 0 completed | Learn |
| Chemical Bonds | 13 mins | 0 completed | Learn Summary |
| Dipole Moment | 12 mins | 0 completed | Learn |
| Octet Rule | 10 mins | 0 completed | Learn |
| Formal Charge | 10 mins | 0 completed | Learn Summary |
| Lewis Dot Structures: Neutral Compounds | 20 mins | 0 completed | Learn Summary |
| Lewis Dot Structures: Sigma & Pi Bonds | 10 mins | 0 completed | Learn |
| Lewis Dot Structures: Ions | 15 mins | 0 completed | Learn |
| Lewis Dot Structures: Exceptions | 17 mins | 0 completed | Learn |
| Lewis Dot Structures: Acids | 15 mins | 0 completed | Learn |
| Resonance Structures | 19 mins | 0 completed | Learn |
| Average Bond Order | 5 mins | 0 completed | Learn |
| Bond Energy | 15 mins | 0 completed | Learn |
| Coulomb's Law | 6 mins | 0 completed | Learn |
| Lattice Energy | 11 mins | 0 completed | Learn Summary |
| Born Haber Cycle | 12 mins | 0 completed | Learn Summary |
Bond Energy is the amount of energy stored within a chemical bond.
Bond Energy
Concept #1: Bond Energy
When individual bond energies are given, we will use the first formula.
Example #1: Calculate the ∆Horxn if the bond enthalpies of NΞN, H–H and N–H are 945 kJ/mol, 432 kJ/mol and 391 kJ/mol respectively.
Practice: Use the bond energies to estimate the enthalpy of reaction for the combustion of 5 moles of acetylene:
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