use the ff table to answer

A 0.72132-cm diameter spherical ball of para-dichlorobenzene (p-DCB, C6H4C12), the main component of deodorant in restrooms, is left suspended in air in a large room at 20 o C and 1 atm. The vapor pressure of p-DCB at 20 o C is 1.3 mmHg. Fuller, Schettler, and Giddings calculated the diffusivity of p- DCB in air to be 7.29 x 10-2 cm 2 /s. Determine the rate of sublimation of p-DCB from the surface in mol/m2 -hr. (Atomic weights: C-12.00, H-1.00, Cl -35.45)