MATTER IN OUR SURROUNDINGS · Fourth state of matter! Plasma is known as fourth state of matter. It...

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MATTER IN OUR SURROUNDINGS

Transcript of MATTER IN OUR SURROUNDINGS · Fourth state of matter! Plasma is known as fourth state of matter. It...

Page 1: MATTER IN OUR SURROUNDINGS · Fourth state of matter! Plasma is known as fourth state of matter. It is a mixture of free electrons and ions. Plasma occurs naturally in the star which

MATTER IN OUR SURROUNDINGS

Page 2: MATTER IN OUR SURROUNDINGS · Fourth state of matter! Plasma is known as fourth state of matter. It is a mixture of free electrons and ions. Plasma occurs naturally in the star which

RECAPITULATION

What is evaporation?

What are the factors which affects the rate of evaporation?

Why increased surface area make evaporation faster?

Page 3: MATTER IN OUR SURROUNDINGS · Fourth state of matter! Plasma is known as fourth state of matter. It is a mixture of free electrons and ions. Plasma occurs naturally in the star which

Evaporation cause cooling

A liquid for evaporation takes latent heat of vaporisation from its surroundings and as surroundings lose heat so it leads to cooling.

Page 4: MATTER IN OUR SURROUNDINGS · Fourth state of matter! Plasma is known as fourth state of matter. It is a mixture of free electrons and ions. Plasma occurs naturally in the star which

Nail polish remover cools the hand!

Page 5: MATTER IN OUR SURROUNDINGS · Fourth state of matter! Plasma is known as fourth state of matter. It is a mixture of free electrons and ions. Plasma occurs naturally in the star which

Sprinkle water and cool down!

Page 6: MATTER IN OUR SURROUNDINGS · Fourth state of matter! Plasma is known as fourth state of matter. It is a mixture of free electrons and ions. Plasma occurs naturally in the star which

Water kept in earthen pot cools down. How?

Page 7: MATTER IN OUR SURROUNDINGS · Fourth state of matter! Plasma is known as fourth state of matter. It is a mixture of free electrons and ions. Plasma occurs naturally in the star which

Desert cooler cools better on a hot dry day!

Page 8: MATTER IN OUR SURROUNDINGS · Fourth state of matter! Plasma is known as fourth state of matter. It is a mixture of free electrons and ions. Plasma occurs naturally in the star which

Perspiration maintains our body temperature

Page 9: MATTER IN OUR SURROUNDINGS · Fourth state of matter! Plasma is known as fourth state of matter. It is a mixture of free electrons and ions. Plasma occurs naturally in the star which

Wear cotton clothes in summer.

Page 10: MATTER IN OUR SURROUNDINGS · Fourth state of matter! Plasma is known as fourth state of matter. It is a mixture of free electrons and ions. Plasma occurs naturally in the star which

Are water vapors present in air?

Page 11: MATTER IN OUR SURROUNDINGS · Fourth state of matter! Plasma is known as fourth state of matter. It is a mixture of free electrons and ions. Plasma occurs naturally in the star which

Fourth state of matter!Plasma is known as fourth state of matter.

It is a mixture of free electrons and ions.

Plasma occurs naturally in the star which is created due to high temperature .

The fluorescent tubes and neon sign bulbs are also consists of plasma.

Page 12: MATTER IN OUR SURROUNDINGS · Fourth state of matter! Plasma is known as fourth state of matter. It is a mixture of free electrons and ions. Plasma occurs naturally in the star which

Bose-Einstein CondensateThis is the fifth state of matter for

which calculations were done by Indian scientist S.N Bose in 1920 and based on these calculations Albert Einstein predicted its existence.

It is obtained by cooling a gas of extremely low density to super low temperatures

Page 13: MATTER IN OUR SURROUNDINGS · Fourth state of matter! Plasma is known as fourth state of matter. It is a mixture of free electrons and ions. Plasma occurs naturally in the star which

HAPPY LEARNING!