The ratio of rates of diffusion of gases A and B is 1 : 2. If the ratio of their masses present in the mixture is 2 : 3, what is the ratio of their mole fractions?
Q1. The ratio of rates of diffusion of gases A and B is 1 : 2. If the ratio of their masses present in the mixture is 2 : 3, what is the ratio of their mole fractions?
Answer: 1 : 4
Explanation: Use Graham's law of diffusion: r1/r2 = √(M2/M1). Then, relate mole fractions to mass ratio and molar masses.