EASY
Earn 100

Evaporation is an example of chemical change.

50% studentsanswered this correctly

Important Questions on A Journey Through States of Water

EASY
Science>Chemistry>A Journey Through States of Water>How Can We Change the States of Water?
A person takes hot coffee by pouring it into the saucer when he is in a hurry because he knows that:
EASY
Science>Chemistry>A Journey Through States of Water>How Can We Change the States of Water?

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

MEDIUM
Science>Chemistry>A Journey Through States of Water>How Can We Change the States of Water?
Read the following and select the correct option.
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. 
EASY
Science>Chemistry>A Journey Through States of Water>How Can We Change the States of Water?
The water kept in an earthen pot(matka) become cool during summer by which process?
MEDIUM
Science>Chemistry>A Journey Through States of Water>How Can We Change the States of Water?
Give an example which indicates that evaporation is a cooling process.
MEDIUM
Science>Chemistry>A Journey Through States of Water>How Can We Change the States of Water?

During summer months, water kept in an earthen pot becomes cool due to the phenomenon of

MEDIUM
Science>Chemistry>A Journey Through States of Water>How Can We Change the States of Water?
Why does ethanol evaporate faster than water?
MEDIUM
Science>Chemistry>A Journey Through States of Water>How Can We Change the States of Water?

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

MEDIUM
Science>Chemistry>A Journey Through States of Water>How Can We Change the States of Water?
The rate of evaporation does not depend on -
EASY
Science>Chemistry>A Journey Through States of Water>How Can We Change the States of Water?
During summer, water kept in an earthen pot becomes cool because of the phenomenon of
MEDIUM
Science>Chemistry>A Journey Through States of Water>How Can We Change the States of Water?

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

MEDIUM
Science>Chemistry>A Journey Through States of Water>How Can We Change the States of Water?
Why do we wear cotton clothes in summer? 
HARD
Science>Chemistry>A Journey Through States of Water>How Can We Change the States of Water?
Describe the factors which affect evaporation.
MEDIUM
Science>Chemistry>A Journey Through States of Water>How Can We Change the States of Water?
Why does water get cooled in an earthen pot?
EASY
Science>Chemistry>A Journey Through States of Water>How Can We Change the States of Water?
Which of the following is accompanied by cooling -
EASY
Science>Chemistry>A Journey Through States of Water>How Can We Change the States of Water?

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

EASY
Science>Chemistry>A Journey Through States of Water>How Can We Change the States of Water?
Rainfall patterns depend on
MEDIUM
Science>Chemistry>A Journey Through States of Water>How Can We Change the States of Water?
In the absence of a refrigerator, butter is kept wrapped in a wet cloth during summer. Why?
MEDIUM
Science>Chemistry>A Journey Through States of Water>How Can We Change the States of Water?

What are the factors which affect the rate of evaporation?

MEDIUM
Science>Chemistry>A Journey Through States of Water>How Can We Change the States of Water?

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