Surface tension and capillarity
Calculate the pressure inside a spherical bubble of radius 810 -5 m located in a water tank 15 m below the
surface of the water ( = 1000 kg/m3, = .070 N/m, atmospheric pressure 105 Pa).
Solution: pressure outside the bub
Diffusion and Heat transfer I m WWI,
l. A spherical molecule has a diffusion coefcient of 5.0><10'11 m2/s. How long will it take 1/3 of such
molecules to diffuse a distance of 1 micrometer in an E. coli cell where the viscosity is 0.005 Pa 8?