please answer all the question

PROBLEM 5 However, regeneration of CO2 from MEA is energy expensive, hence the recycle MEA will come in with a CO2 mole fraction of 0.3 . Cale d. the mole fraction of CO2 in MEA that is equilibrium with the inlet gas, e. the minimum MEA molar flow rate per mole of inlet gas that can achieve the reduction, f. the number of equilibrium stages required if the MEA flow is twice the minimum flow. Please be reminded that and term in the operating line cannot be neglected