Identify the pair of gases that have equal rates of diffusion

Step-by-step solution

According to Grahams Law of Diffusion, the rate of diffusion r of a gas is inversely proportional to the square root of its molar mass M , given by r 1 M . Two gases will have equal rates of diffusion if and only if they have equal molar masses. Calculating the molar masses of the given pairs: For N ₂ O and CO ₂ : Molar mass of N ₂ O = 2 14 + 16 = 28 + 16 = 44 g/mol . Molar mass of CO ₂ = 12 + 2 16 = 12 + 32 = 44 g/mol . Since both N ₂ O and CO ₂ have the same molar mass of 44 g/mol , their rates of diffusion are e