Bond Parameters
Chapter Name : Chemical Bonding And Molecular Structure |
Sub Topic Code : 102_11_04_04_03 |
Topic Name : Bond Parameters |
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Sub Topic Name : Bond Enthalpy |
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Introduction
• Bond enthalpy is defined as the amount of energy required to break one mole of bonds of a particular type between two atoms in a gaseous state. • Larger the bond dissociation enthalpy, stronger will be the bond in the molecule.
Pre-Requisites:
Chemical bond, ionic bond, mole
Activity:
Energy is required to break something.
Real Life Question:
How much strength is needed to break objects?
Key Words / FlashCards
| Key Words | Definitions (pref. in our own words) |
|---|---|
| Bond enthalpy | • The amount of energy required to break one mole of bonds of a particular type between two atoms in a gaseous state. |
Learning aids / Gadgets
| Gadgets | How it can be used |
|---|---|
| Metal chain, | Try to break a chain link and observe the amount of energy required to break it. |
Real life uses :
Energy is released when a bond is made and is used when a bond needs to be broken.
Places to visit :
Playground, home, garage
Practical examples around us
| Examples | Explainations |
|---|---|
| Physical objects | Some amount of energy is always needed to break an object. |
What you learn in Theory:
• Bond enthalpy is defined as the amount of energy required to break one mole of bonds of a particular type between two atoms in a gaseous state.
What you learn in Practice:
Bond enthalpy is larger for complex bonds and molecules.