Pure aniline is evaporating through a stagnant air film of 1 mm thickness at 300

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Pure aniline is evaporating through a stagnant air film of 1 mm thickness at 300 K and a total pressure of 100 KPa. The vapor pressure of aniline at 300 K is 0.1 KPa. The total molar concentration under these conditions is 40.1 mole/m³ . The diffusivity of aniline in air is 0.74xl0⁻⁵m²/s.The numerical value of mass transfer co-efficient is 7.4 x 10⁻³. The rate of evaporation of aniline is 2.97 x 10⁻⁴. Its units are

Options:

A . Mole/s

B . Mole/cm². s

C . Mole/m² . s

D . Kmole/m² . s

Answer: Option D

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