For a binary mixture of species A and B, the molar average velocity i

1.	For a binary mixture of species A and B, the molar average velocity is defined as
A.	n a V a + n b V b
B.	n a V a + n b V b/n
C.	n a V a + n b V b/2 n
D.	n a V a + 2 n b V b/n
Answer» C. n a V a + n b V b/2 n

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