What Is the Diameter of a Capillary Tube Holding Methanol

Multiple Choice

What is the diameter of a capillary tube holding methanol, if the methanol rises to the same height as water in a 1 mm diameter tube? (Take 0° for contact angles, surface tension for water ó_H2O= 0.073 N/m, and of methanol ó_methanol = 0.023 N/m. Density of water is ñ_H2O = 1000 kg/m³, and of methanol ñ_methanol = 792 kg/m³.)

A) 0.2 mm
B) 0.4 mm
C) 2.0 mm
D) 4.0 mm