Question

SECTION-3
15. Kushagra dropped a crystal of copper sulphate into a beaker of hot water and cold water each 3
and observed carefully.
(What would he observe as the time passes
(ii) Does the rate of mixing change with temperaturer Why and how?
lih a blick paper from all sides, They​

Answer 1

Explanation:

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Answer 2

Answer:

Explanation:

When a Drop of Copper Sulphate or Potassium Permanganate are added to a glass of hot water and cold water respectively, we observe that :

---> In the glass of cold water, Copper sulphate /KMnO4 crystals settles down at the bottom and whereas in Hot water , CuSO4/KMnO4  crystals  spreads slowly and we can see the colour of water changing to blue/pink.

---> After some period of time, we an observe that even in cold water CuSO4 /KMnO4 crystals will dissolve in cold water at slow rate whereas in Hot water it dissolves faster and colour of water Changes to blue/Pink .

---->This activity suggests that , The particles of matter move continuously . As they move they posses Kinetic energy. As temperature increases, the kinetic energy of particles increases and thus particles get diffused at faster rate.

We can conclude from this activity that :

1. Diffusion is the property of particles of matter which increases with increase of temperature.

2. Temperature is a measure of  Average kinetic energy of molecules