Methane is at the rate 50 moles is supplied to a reactor with air at the rate 1000 moles, the reactor leaves O2, N2, CO2 and H2O, what is the percentage of O2 in products?

Methane is at the rate 50 moles is supplied to a reactor with air at t

1.	Methane is at the rate 50 moles is supplied to a reactor with air at the rate 1000 moles, the reactor leaves O₂, N₂, CO₂ and H₂O, what is the percentage of O₂ in products?
A.	t10.4%
B.	t25.8%
C.	t45.6%
D.	t78.2%
Answer» B. t25.8%