One thousand kilogram-moles per hour of rich gas at 70F with 25% C1, 15% C2, 25% C3,

Question:

One thousand kilogram-moles per hour of rich gas at 70°F with 25% C1, 15% C2, 25% C3, 20% nC4, and 15% nC5 by moles is to be absorbed by 500 kmol/k of nC10 at 90°F in an absorber operating at 4 atm. Calculate by the Kremser group method the percent absorption of each component for:
(a) Four theoretical stages,
(b) Ten theoretical stages, and
(c) Thirty theoretical stages.