Question

(i) Raman dropped a crystal of copper sulphate
in beakers A and B containing cold water and
hot water respectively.
(a) Write the colour of the solution in both the
cases.

(b) In which beaker the colour change took
place at faster rate?

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Answer 1

ANSWER :

1) AFTER ADDING A DROP OF CRYSTAL OF COPPER SULPHATE IN BOTH BEAKERS , THE COLOUR BECOMES BLUE.

2) THE COLOUR OF SOLUTION IN FIRST BEAKER BECOMES BLUE SLOWLY WHERE AS THE COLOUR BECOMES BLUE FASTER IN SECOND BEAKER.

EXPLANATION -:

THE RATE OF DIFFUSION INCREASES WITH INCREASE IN TEMPERATURE BECAUSE KINETIC ENERGY OF MOLECULES.

AS TEMPERATURE INCREASES PARTICLES MOVE FASTER SO MIXING OF CRYSTALS IS FASTER IN HOT WATER..

HOPE , IT IS HELPFUL TO YOU...

MARK AS BRAINLIEST

Answer 2

When Raman dropped a crystal of Copper Sulphate in beakers A and B containing cold water and hot water respectively, then:

(a) The colour of the solution in beaker A will not change much, i.e., it will remain the same or become slightly blue whereas the colour of the solution in beaker B will become blue.

(b) The colour change took place in beaker B at a faster rate.

- This is due to the fact that the diffusion of copper sulphate is faster at a high temperature.