A mixture of \(\mathrm{H}_{2}\) and \(\mathrm{D}_{2}\) is contained in two bulbs connected by a porous plug. The bulbs are maintained at different temperatures of 200 and \(600 \mathrm{~K}\). The thermal diffusion parameter \(k_{T}=0.0166\). The mole fraction of deuterium is initially equal to 0.1 . Find the differences in the mole fractions in the two bulbs when a steady state is established due to the combined effect of Fick and thermal diffusion. In which bulb does hydrogen accumulate?