Factors Affecting Equilibria
Chapter Name : Equilibrium |
Sub Topic Code : 102_11_07_09_02 |
Topic Name : Factors Affecting Equilibria |
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Sub Topic Name : Effect Of Pressure Change |
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Introduction
• “A pressure change obtained by changing the volume can affect the yield of products in case of a gaseous reaction where the total number of moles of reactants and products are different. • In applying Le Chatelier’s principle to a heterogeneous equilibrium the effect of pressure changes on solids and liquids can be ignored because the volume (and concentration) of a solution/liquid is nearly independent of pressure.
Pre-Requisites:
Reaction, equilibrium constant, reaction quotient, gibbs energy
Key Words / FlashCards
| Key Words | Definitions (pref. in our own words) |
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| Le Chatelier’s principle | • Le Chatelier’s principle states that a “change in any of the factors that determine the equilibrium conditions of a system will cause the system to change in such a manner so as to restore the balance.” This is applicable to all physical and chemical equilibria. |
Learning aids / Gadgets
| Gadgets | How it can be used |
|---|---|
| See saw | • To obtain balance both sides should have equal weights. |
Practical examples around us
| Examples | Explainations |
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What you learn in Theory:
• In applying Le Chatelier’s principle to a heterogeneous equilibrium the effect of pressure changes on solids and liquids can be ignored because the volume (and concentration) of a solution/liquid is nearly independent of pressure.
What you learn in Practice:
• In applying Le Chatelier’s principle to a heterogeneous equilibrium the effect of pressure changes on solids and liquids can be ignored because the volume (and concentration) of a solution/liquid is nearly independent of pressure.