Equilibrium In Physical Processes
Chapter Name : Equilibrium |
Sub Topic Code : 102_11_07_02_05 |
Topic Name : Equilibrium In Physical Processes |
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Sub Topic Name : General Characteristics Of Equilibria Involving Physical Processes |
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Introduction
• Equilibrium is possible only in a closed system at a given temperature. • Both the opposing processes occur at the same rate and there is a dynamic but stable condition. • All measurable properties of the system remain constant. • When equilibrium is attained for a physical process, it is characterized by constant value of one of its parameters at a given temperature. • The magnitude of such quantities at any stage indicates the extent to which the physical process has proceeded before reaching equilibrium.
Pre-Requisites:
Solid, gases, equilibrium, dissolution
Activity:
• When a soda water bottle is opened, some of the carbon dioxide gas dissolved in it fizzes out rapidly.
Real Life Question:
When a soda bottle is
opened, why does the gas come out?
Key Words / FlashCards
| Key Words | Definitions (pref. in our own words) |
|---|---|
| Equilibrium | • Balance. |
Learning aids / Gadgets
| Gadgets | How it can be used |
|---|---|
| thermos | • Thermos depicts a closed system. |
Real life uses :
Attaining equilibrium
in biological systems.
Places to visit :
Kitchen.
Practical examples around us
| Examples | Explainations |
|---|---|
| Soda bottle | • When a soda water bottle is opened, some of the carbon dioxide gas dissolved in it fizzes out rapidly. • The phenomenon arises due to difference in solubility of carbon dioxide at different pressures. |
What you learn in Theory:
• Equilibrium is possible only in a closed system at a given temperature. • Both the opposing processes occur at the same rate and there is a dynamic but stable condition. • All measurable properties of the system remain constant.
What you learn in Practice:
• Equilibrium is possible only in a closed system at a given temperature. • Both the opposing processes occur at the same rate and there is a dynamic but stable condition. • All measurable properties of the system remain constant.