At 25 °, estimate the diffusivity of argon (mole fraction of 0.01) in a mixture of nitrogen, oxygen, and carbon dioxide (mole fractions of 0.78, 0.0205, and 0.005, respectively. Diffusivity of argon in a mixture of gases can be calculated using the following formula: Dim 1- yı Yj -1 N - ( 22 ) Where D₁j is the diffusivity of gas 1 in a binary mixture with component j.