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A gas mixture with 5% Neon with pressure 10 atm at 27^oC is entered a reactor with rate F, and another stream with pure Neon with 8 atm pressure at 27^oC entered the reactor with rate 3 liter/s, product has 10% Neon with same conditions with rate P, what is the value of F?(a) 3 liter/s(b) 15 liter/s(c) 48 liter/s(d) 72 liter/sThis question was addressed to me in an internship interview.The doubt is from Material Balances Involving Ideal Gases topic in chapter Recycle, Bypass, Purge, Ideal Gases and Real Gases of Basic Chemical Engineering

Answer»

The correct choice is (d) 72 liter/s

The explanation is: 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.



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