Question
If an oil drop of radius 0.25mm spreads on the surface of water to form an oil patch of diameter 0.1m,estimate the length of the oil molecule.
Answers
assuming the circle is one molecule thick, then working in mm, we have
π(100)^2 x = 4/3 π(0.25)^3
x = 2.08 * 10^-6 mm
π(100)^2 x = 4/3 π(0.25)^3
x = 2.08 * 10^-6 mm