short note on chapter 1 chemistry class 9

chapter-1

Matter in our surrounding

Matter- The substance that occupies the volume and mass is called matter.

States of matter-

1. Solid

2. Liquid

3. Gas

4. Plasma

5. Bose Einstein condensate

Charactersitcs of perticles of matter-

1. Particles of matter are in the state of continoues moment.

2. Particles of matter are attract each other.

etc.

Change of states of matter-

Solid to liquid- Fusion

Liquid to solid- Freezing

Liquid to gas – vapourisation

Gas to liquid- condensation

Gas to solid- solidification

Solid to gas- sublimation

Conversion of temperature-)

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