Question

3. In the given experimental set-up, a dye is
placed at the bottom of a beaker filled with
water. After some time, the entire water in the
beaker became coloured uniformly as shown
in figure D.
(a) Name and define the phenomenon shown
in this experiment.
(b) In the above figure, two kinds of molecules
are shown: larger and smaller. Mention
which molecules are of the solute and
which are of solvent?
(c) If all the bigger molecules in A are enclosed in a permeable membrane, what will be the nature of movement of the
molecules, if any?
d) Give one example from your daily life experiences based on this principal.
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Answer 1

Answer:

a). This phenomenon is know as diffusion.

in this process ink molecules which possess a zig- zag motion (Brownian motion) get spread entirely and uniformly in solvent medium (water).

b) larger ones are the solute molecules and vice versa.

c). From higher concentration to lower concentration.

d). when something is being cooked the aroma can be sensed in entire house..

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Answer 2

Answer:

(a) The phenomenon shown in the experiment is diffusion, it is the movement of the molecules or atoms of a substance in any form from the region of higher concentration the region of lower concentration.

(b) The larger molecules are of the solute (dye).

      The smaller molecules are of the solvent (water).

(c) If bigger molecules are enclosed in a permeable membrane, the nature of the movement will be passive transport, that is, diffusion.

Sorry, I'm not sure of part 'd'

Thank you:) If you have any questions, feel free to ask!