Process Calculations GATE-2012

Common data for Q 1 & 2:
The reaction A(liq)+B(gas)\rightarrow C(liq)+D(gas) , is carried out in a reactor followed by a separator as shown below

Notation:
- Molar flow rate of fresh B is FFB
- Molar flow rate of A is FA
- Molar flow rate of recycle gas is FRG
- Mole fraction of B in recycle gas is YRB
- Molar flow rate of purge gas is FPG
- Molar flow rate of C is FC
Here, FFB = 2 mol/s; FA = 1 mol/s, FB/FA = 5 and A is completely converted.
Q 1: If YRB = 0.3, the ratio of recycle gas to purge gas (FRG/FPG) is
Q 2: If the ratio of recycle gas to purge gas (FRG/FPG) is 4 then YRB is