Introduction
Chapter Name : Surface Chemistry |
Sub Topic Code : 102_12_05_01_01 |
Topic Name : Introduction |
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Sub Topic Name : Introduction |
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Introduction
• Surface chemistry deals with phenomena that occur at the surfaces or interfaces. • The interface or surface is represented by separating the bulk phases by a hyphen or a slash. • Due to complete miscibility, there is no interface between the gases. • The interface is normally a few molecules thick but its area depends on the size of the particles of bulk phases. • Many important phenomena, like corrosion, electrode processes, heterogeneous catalysis, dissolution and crystallization occur at interfaces.
Pre-Requisites:
Surface, interface, gases, solids, miscibility
Activity:
• Dissolving medicine (disprin) or gluconD in a glass of water.
Real Life Question:
How do substances dissolve in water or other solvents?
Key Words / FlashCards
| Key Words | Definitions (pref. in our own words) |
|---|---|
| Surface chemistry | • Surface chemistry deals with phenomena that occur at the surfaces or interfaces. |
Learning aids / Gadgets
| Gadgets | How it can be used |
|---|---|
| Drop 2 tablets of disprin in a cup of water | When u drop disprin in a cup of water, observe how the dissolution process takes place. |
Real life uses :
Dissolving substances in solutions.
Places to visit :
Kitchen.
Practical examples around us
| Examples | Explainations |
|---|---|
| dissolution | • Dissolving medicine (disprin) or gluconD D in a cup of water. |
What you learn in Theory:
• Surface chemistry deals with phenomena that occur at the surfaces or interfaces. • The interface or surface is represented by separating the bulk phases by a hyphen or a slash. • Due to complete miscibility, there is no interface between the gases. • The interface is normally a few molecules thick but its area depends on the size of the particles of bulk phases. Many important phenomena, like corrosion, electrode processes, heterogeneous catalysis, dissolution and crystallization occur at interfaces.
What you learn in Practice:
• Surface chemistry deals with phenomena that occur at the surfaces or interfaces. • The interface or surface is represented by separating the bulk phases by a hyphen or a slash. • Due to complete miscibility, there is no interface between the gases. • The interface is normally a few molecules thick but its area depends on the size of the particles of bulk phases. Many important phenomena, like corrosion, electrode processes, heterogeneous catalysis, dissolution and crystallization occur at interfaces.