281Chemical EngineeringMedium
Pick out the wrong statement?
AAn Azeotropic mixture of two liquids has boiling point higher than either of them, when it
BThe mass diffusivity, the thermal diffusivity and the eddy momentum diffusivity are the same
C1 Nm3 of dry air is lighter than 1Nm3 of humid air
DThe Lewis number of a mixture is unity, when the thermal diffusivity is equal to the mass
Correct answer
C. 1 Nm3 of dry air is lighter than 1Nm3 of humid air
Explanation
The correct answer is 1 Nm3 of dry air is lighter than 1Nm3 of humid air.