Put few drops of ink in water and observe Analys theresult
Answers
Answer:
IT EVENLY SPREAD OVER ALL DIRECTIONS
Explanation:
When ink is dropped in water due to the principle of diffusion it evenly spreads in the water making it a blue colour.
This happens because the particles of the matter are in constant random motion called
Answer:
Explanation:
Ink diffuses in water because of the random motion of water and ink molecules. On a large scale, we don’t see the individual molecules moving. Instead we see how dark the ink is at different points in the solution, which actually indicates its concentration. You can see the ink move from areas of higher concentration to those of lower concentration, and the rate of this movement is proportional to the diffusion coefficient of the ink in water.
Random Motions
Temperature is a measure of the random motions of molecules. As water molecules move around randomly in a mixture with ink, they bump into the ink molecules, causing them to move randomly as well. In places where there are more ink molecules, there are more collisions with water molecules that bump the ink molecules to other places. As a result, on average, the ink molecules move from areas with more molecules (higher concentration) to areas with fewer molecules (lower concentration).
Diffusion Coefficient
The higher the temperature of the water, the faster the molecules move. This results in more and harder collisions. Consequently, the diffusion coefficient is proportional to the temperature. How far each ink molecule moves after a collision depends on its diameter, because bigger molecules slow down more from friction compared to smaller molecules. The intrinsic friction in a fluid is called viscosity. Thus, the diffusion coefficient is inversely proportional to both the molecule's diameter and the liquid's viscosity.
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