Pure air is flowing past (perpendicular to) a solid cylinder of naphthalene. The air is at 100C and 1 atm. The cylinder is 0.020 m diameter, and the Reynolds number is 2000. The viscosity of air at 2.17 x 10-5 Ns/m2, and the diffusivity of naphthalene in air at this temperature is 0.94 x 10-5 m2/s. The mixture concentration is 0.0327 kmol/m3. The vapor pressure of naphthalene is 10 mmHg. A correlation for the Nusselt number for this situation is

Nu=0.683 Re^0.466 Pr^0.333

What is the velocity, m/s? What is the Sherwood number? What is the mass transfer coefficient? What is the rate of naphthalene sublimation into the air, per unit length of cylinder?