Calculate the value of mass transfer coefficient from a solid sphere of camphor to air at 40 °C and 1.5 atm flowing at a velocity of 45 cm/s. The diameter of the sphere is 22.5 mm. The diffusivity of...

Calculate the value of mass transfer coefficient from a solid sphere of camphor to air at 40 oC and 1.5 atm flowing at a velocity of 45 cm/s. The diameter of the sphere is 22.5 mm. The diffusivity of camphor in air at 40 oC is 4.5 x 10-6 m2/s and the vapor pressure of solid camphor is 0.456 mmHg. Viscosity of air is 1.75 x10-5 Pa.s and the density of air is 0.00145 g/cm3.

Extracted text: Calculate the value of mass transfer coefficient from a solid sphere of camphor to air at 40 °C and 1.5 atm flowing at a velocity of 45 cm/s. The diameter of the sphere is 22.5 mm. The diffusivity of camphor in air at 40 oC is 4.5 x 10-6 m²/s and the vapor pressure of solid camphor is 0.456 mmHg. Viscosity of air is 1.75 x10-5 Pa.s and the density of air is 0.00145 g/cm³. O a. 5.83 x10-5 mm/s O b. 5.83 x10-6 m/s O c. 5.83 cm/s o d. 5.83 x10-3 m/s