In an experiment to determine the thickness of an oil molecule, an oil drop of volume 3.60 x 10^-6 m³ was observed to form a...

In an experiment to determine the thickness of an oil molecule, an oil drop of volume 3.60 x 10^-6 m³ was observed to form a circular patch of diameter 0.016m on the surface of water covered with lycopodium powder
i). Explain why the oil drop forms a circular patch.
ii) Determine the thickness of the oil molecule

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i). Oil lowers the surface tension of water, in attempt of water molecules trying to make their surface as small as possible
Or
Oil spread uniformly because it breaks the surface tension of water whose particles pull away from the oil

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Kavungya answered the question on May 31, 2019 at 09:25

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