Question

Pick out the wrong statement.

A.The mass diffusivity, the thermal diffusivity and the eddy momentum diffusivity are the same for NSc = NPr = 1.B.1 Nm3 of dry air is lighter than 1Nm3 of humid air.C.The Lewis number of a mixture is unity, when the thermal diffusivity is equal to the mass diffusivity.D.An azeotropic mixture of two liquids has boiling point higher than either of them, when it shows negative deviation from Raoult's Law.​

Answer 1

Explanation:

A.The mass diffusivity, the thermal diffusivity and the eddy momentum diffusivity are the same for NSc = NPr = 1.B.1 Nm3 of dry air is lighter than 1Nm3 of humid air.C.The Lewis number of a mixture is unity, when the thermal diffusivity is equal to the mass diffusivity.D.An azeotropic mixture of two liquids has boiling point higher than either of them, when it shows negative deviation from Raoult's Law.

Answer 2

Answer:

B. 1 Nm³ of dry air is lighter than 1Nm³ of humid air