Equilibrium In Chemical Processes - Dynamic Equilibrium
Chapter Name : Equilibrium |
Sub Topic Code : 102_11_07_03_01 |
Topic Name : Equilibrium In Chemical Processes - Dynamic Equilibrium |
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Sub Topic Name : Equilibrium In Chemical Processes - Dynamic Equilibrium |
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Introduction
• At chemical equilibrium the concentrations of the reactants and the products remain constant. • This equilibrium is dynamic in nature as it consists of a forward and a reverse reaction.
Pre-Requisites:
Solid, gases, reactants, products
Activity:
• When a soda water bottle is opened, some of the carbon dioxide gas dissolved in it fizzes out rapidly.
Real Life Question:
In a new bottle of cola the
concentration of carbon dioxide in the liquid phase has a particular value. If half of the liquid is
poured out and the bottle is sealed, carbon dioxide will leave the liquid phase
at an ever decreasing rate and the partial pressure of carbon dioxide in the gas phase will increase until equilibrium is reached. At that
point a molecule of CO2 may leave the liquid phase,
but then another molecule of CO2 will pass from the gas to the liquid.
Key Words / FlashCards
| Key Words | Definitions (pref. in our own words) |
|---|---|
| Equilibrium mixture | A mixture of reactants and products in the equilibrium state is called an equilibrium mixture. |
Learning aids / Gadgets
| Gadgets | How it can be used |
|---|---|
| thermos | • Thermos depicts a closed system. |
Real life uses :
Dynamic equilibrium
helps to maintain several reactions within 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:
• At chemical equilibrium the concentrations of the reactants and the products remain constant. • This equilibrium is dynamic in nature as it consists of a forward and a reverse reaction.
What you learn in Practice:
• At chemical equilibrium the concentrations of the reactants and the products remain constant. • This equilibrium is dynamic in nature as it consists of a forward and a reverse reaction.