Liquid toluene is poured into a vertical glass tube 2 cm from the top openend, having a diameter of 3 mm. The level has decreased to 7.75 cm from the top after 275 hours at 303k and 760 mm Hg of overall pressure. Compute diffusivity's value. Data: vapor pressure of toluene at 39.4C = 57 mm of Hg density of liquid toluene = 850 kg/m3 Molecular weight of toluene = 92