+1 vote
in Mass Transfer by (37.1k points)
For a binary mixture of species A and B, the mass average velocity is defined as

(a) 2 pa Va + pb Vb/ p

(b) pa Va + pb Vb/ p

(c) pa Va + 2 pb Vb/ p

(d) pa Va + pb Vb/ 2 p

The question was posed to me in an online interview.

Question is taken from Concentrations, Velocities and Fluxes in portion Modes and Diffusion of Mass Transfer

1 Answer

0 votes
by (39.8k points)
The correct answer is (b) pa Va + pb Vb/ p

To explain I would say: pa Va + pb Vb/ pa + pb = pa Va + pb Vb/ p.

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