A binary mixture of oxygen and nitrogen with partial pressures in the ratio 0.21 and 0.79 is contained in a vessel at 300 K. If the total pressure of the mixture is 1 * 10 ^5 N/m^2, find molar fraction of nitrogen
(a) 0.79
(b) 0.21
(c) 0.23
(d) 0.13
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My question is based upon Concentrations, Velocities and Fluxes in portion Modes and Diffusion of Mass Transfer