The set- up below was used to investigate the rate of diffusion of different gases.

The set- up below was used to investigate the rate of diffusion of different gases.

a) Explain why a coloured liquid is used in this experiment.
b) State and explain the observation made after 20 minutes.

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a) Better Visibility

b) Level of the liquid rises above level A and falls below level B. Hydrogen diffuses out of the porous pot faster than air diffuses into the pot. This leads to decrease in pressure inside the pot causing level at A to rise.

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maurice.mutuku answered the question on September 19, 2019 at 07:27

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