Catalysis
Chapter Name : Surface Chemistry |
Sub Topic Code : 102_12_05_03_01 |
Topic Name : Catalysis |
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Sub Topic Name : Catalysis |
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Introduction
Substances, which accelerate the rate of a chemical reaction and themselves remain chemically and quantitatively unchanged after the reaction, are known as catalysts, and the phenomenon is known as catalysis.
Pre-Requisites:
Catalyst, catalysis, promoters, poisons
Activity:
Catalytic converters in automobiles.
Real Life Question:
How to bleach the waste oil color?
Key Words / FlashCards
| Key Words | Definitions (pref. in our own words) |
|---|---|
| Promoters | Promoters are substances that enhance the activity of a catalyst. |
| Poisons | Poisons decrease the activity of a catalyst. |
Learning aids / Gadgets
| Gadgets | How it can be used |
|---|---|
| Test tube, burner, | When a little manganese dioxide is added, the decomposition takes place at a considerably lower temperature range i.e., 473-633K and also at a much accelerated rate. |
Real life uses :
A new type of plastic called "isotactic" polymers has been discovered. These could be produced easily, and in abundance, through the use of catalysts.
Places to visit :
Chemistry lab
Practical examples around us
| Examples | Explainations |
|---|---|
| Production of Ammonia | Catalysts are used in the industrial production of ammonia, nitric acid (produced from ammonia), sulfuric acid, and other substances. |
What you learn in Theory:
Substances, which accelerate the rate of a chemical reaction and themselves remain chemically and quantitatively unchanged after the reaction, are known as catalysts, and the phenomenon is known as catalysis.
What you learn in Practice:
Catalyst increases the rate of the reaction.