Chemistry Basic

 Chemistry

Introduction:

Chemistry: It is the branch of science which deals with the study of chemicals, substance or matter.

Father: Antoine Lavoisier

Substance or Matter: Anything in this universe which have some weight (mass) and which can occupy some space is called Substance or Matter.

Stages of Matter:

There are four stages of Matter:-

1.      Solid

2.      Liquid

3.      Gas

4.      Plasma

We will discuss these stages in detail:

1.      Solid:

·         Molecules remain closure to each other.

·         Strong inter-molecular forces between the molecules.

·         High density.

·         Definite size and volume.

2.      Liquid:

·         Indefinite size.

·         Definite volume.

3.      Gas:

·         Indefinite volume and size.

Weak inter-molecular forces.

·         Distance between molecules are more.

4.      Plasma:

·         Discovered by William Crookes in 1879.

·        
Gas  ^{ionised (High temp)}     Plasma.

Conversion of Stages of Matter:

·        
Solid    ^Melting         Liquid

·        
Liquid   ^Freezing        Solid

·        
Liquid   ^Evaporation    Gas

·        
Gas      ^Condensation    Liquid

·        
Gas    ^Deposition      Solid

·        
Solid  ^Sublimation      Gas

 

 

 

 

 

 https://youtu.be/bka20Q9TN6M