Question

An oil drop of radius 0.15 mm forms an oil film of radius 7.0 cm on water. Assuming that the oil film is one molecule thick, estimate the diameter of the oil molecule.

a) 0.30 nm
b) 0.60 nm
c) 1.20 nm
d) 2.40 nm

Answer 1

To estimate the diameter of the oil molecule, we can use the concept of the ideal gas law and formulas for volume. The diameter of the oil molecule is approximately 0.30 nm.

Step-by-step explanation:

To estimate the diameter of the oil molecule, we can use the concept of the ideal gas law. Assuming that the oil film is one molecule thick, we can calculate the volume of the oil molecule using the formula for the volume of a sphere. The volume of the oil film can be calculated using the formula for the volume of a cylinder. Using these calculations, we can find the diameter of the oil molecule to be approximately 0.30 nm.