MDCAT Chemistry MCQ #4303

The ratio of rates of diffusion of two gases is 2:1. If the molar mass of the slower gas is 64 g/mol, what is the molar mass of the faster gas?

MDCAT Chemistry MCQ #4303

  1. Question 1

    Q1. The ratio of rates of diffusion of two gases is 2:1. If the molar mass of the slower gas is 64 g/mol, what is the molar mass of the faster gas?

    • A) 16 g/mol
    • B) 32 g/mol
    • C) 8 g/mol
    • D) 4 g/mol

    Answer: 16 g/mol

    Explanation: Graham's Law: Rate ratio = √(M2/M1). So, M1 = 16 g/mol. Option B is incorrect molar mass.