In a vapor-liquid contacting equipment, the overall gas phase mass transfer co-efficient (M.T.C), KG is related to individual co-efficients (KG and KL) as ___________________ ?
A. KG = 1/KG + m/KL
B. 1/KG = 1/KG + m/KL
C. 1/KG = 1/KL + m/KG
D. KG = 1/KL + m/KG