A gas mixture with 5% Neon with pressure 10 atm at 27oC is entered a reactor with rate F, and another stream with pure Neon with 8 atm pressure at 27oC entered the reactor with rate 3 liter/s, product has 10% Neon with same conditions with rate P, what is the value of F?

Correct Answer:
Neon balance- 0.05*F*10 + 3*1*8 = 0.1*P*8, => 0.5F + 24 = 0.8P, Overall balance- F + 3 = P, => 0.3F = 21.6, => F = 72 liter/s.