Question: Problem 6; 40 points) Mass transfer is occurring from a long, cylindrical rod of solid naphthalene having an initial diameter of 18 mm. The rod

Problem 6; 40 points) Mass transfer is occurring from a long,

Problem 6; 40 points) Mass transfer is occurring from a long, cylindrical rod of solid naphthalene having an initial diameter of 18 mm. The rod is suspended in a large volume of still air at 52.6C and 1 atmosphere pressure. The vapor pressure of naphthalene at 52.6C is 1.0 mm Hg, and the diffusivity of naphthalene in air at 0C (1 atm) is known to be 5.16 x 10-6 m/s. If the concentration of naphthalene in the air can be taken as negligible a distance of 30 radii from the surface of the cylinder, estimate the initial flux of naphthalene (mol/ms) from the surface

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