Consider these two expressions for the total molar flux of Neon in a multi-component mixture (note that Dve is an abbreviated version of DNe,mix): NNe = - CDNEVXne + XNe Ek k NNe = -DNEVCNe + CNet* a. State any crucial assumptions contained in the first expression. b. Explain the meaning of each term in the first expression. c. Specifically present the first expression in the case of Air, providing all species whose molar fraction is above 10-6 (there is no need of giving its actual value). Beginning with the first expression, derive the second expression. e. State any extra assumptions made during this derivation. d. f. Explain the meaning of each term in the second expression.