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/m 3 . The diffusivity of aniline in air is 0.74xl0 -5 m 2 /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

Pure aniline is evaporating through a stagnant air film of 1 mm thickn

1.	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/m 3 . The diffusivity of aniline in air is 0.74xl0 -5 m 2 /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
A.	mole/s
B.	mole/cm 2 . s
C.	mole/m 2 . s
D.	kmole/m 2 . s
Answer» E.