(a)We can smell an incense stick lightened at the other end of the room. Name three
properties of matter responsible for this. (b)When you heat water, you see that the particles
of water starts moving and their motion increases on increasing the temperature. Why?
(c)We observe water drops on the outer surface of a glass tumbler filled with ice- cold
water. Why?
Answers
Answer:
Explanation:
a)matters have different inter molicular space according to their physical nature i.e.,
(1) in solid state - presence of negligible or no inter molicular space.
(2) in liquid states - the presence of less inter molecular space.
(3)in gaseous state - the presence of huge inter molecular space as compared to solids or liquids.
b)Particles of matter are continuously moving. This is called Kinetic Energy. As the temperature increases, the particles start moving faster. So, we can say that with an increase in temperature the Kinetic energy of particles also increases.
c)This phenomenon is known as condensation. Cold water inside the water tries to cool down The water vapour in the air which comes in contact with the wall of glass and due to low temperature the vapor liquid and appears as water droplets on the outside of glass.