8. Derive the following overall mass transfer coefficients based on the mole fractions. 1 7/24 K₂ KAky = = Ky ky 1 and 9. Derive and explain the other forms of

overall mass transfer coefficients based on mole fractions as follows: -- - +2 141 || (3-198) + (3-199) m,k, (3-215) (3-216)