Question

Drop a crystal of copper sulphate into a glass of hot
water another contains cold water do not stir
the solution allow the crystals to settle at the
bottom
a) What do you observe just above the solid
crystal in the glass?
b) What happens time passes?
c) What does this suggest about the particies of
solid and liquid?
d)does the rate of mixing change with temperature? Why and how?


2)
Do it yourself activity

a) Put an unlit incense stick in a corner of your
room
b) How close do you have to go near it so as to
gets it's smell
c) Now light the incense stick what happens
d) Do a get the smell sitting at a distance?
e) Record your observations


3)Define diffusion? Give some examples?
​

Answer 1

Explanation:

1 ka a part

Crystals of copper sulphate will start dissolving faster in the glass containing hot water because the temperature increases the kinetic energy of particles and it therefore diffuses faster than in cold watered glass.

1 ka b part

Crystals of copper sulphate will start dissolving faster in the glass containing hot water because the temperature increases the kinetic energy of particles and it therefore diffuses faster than in cold watered glass.