The effective diffusion coefficient of \(\mathrm{H}_{2}\) in a mixture of \(\mathrm{H}_{2}\) and \(\mathrm{CO}\) in a porous catalyst was found to be \(0.036 \mathrm{~cm}^{2} / \mathrm{s}\) at a temperature of \(373 \mathrm{~K}\) and \(2 \mathrm{~atm}\) total pressure. The catalyst has a monodispersed pore structure with pore void fraction of 0.3 .

What is the mean pore size of this material? Are the conditions such that this parameter can be calculated with a reasonable confidence?