EASY
Earn 100

Write the differences between evaporation and boiling?
Important Questions on Changes Around Us
EASY

MEDIUM
Statement (a) : When we pour little petrol on our palm, it causes the palm to feel cool.
Reason (b) : Particles of petrol evaporate using the energy from our palm which causes the palm to feel cool.

MEDIUM

EASY
Let T = Temperature; H = Humidity and v = Wind speed
Which of the following are the best suited conditions for drying up of clothes?

EASY

MEDIUM

EASY

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MEDIUM

MEDIUM
Why does water evaporate faster in a Petri dish than in a test tube?

MEDIUM
What are the factors which affect the rate of evaporation?

MEDIUM

MEDIUM
Why do we feel cool under a fan when we perspire?

HARD

MEDIUM
Why does our palm feel cold when we put some acetone, ethyl alcohol, petrol or perfume on it?


MEDIUM

EASY
Which of the following conditions will increase the evaporation of water?

