91影视

$$\begin{gathered} H=\frac{B}{{渭}_x}+C_{{渭}_x}=(C_s+C_m){渭}_x \\ {C}_s=\frac{2k}{3{\left(k+1\right)}^2}\frac{d^2}{d_s} \\ {C}_m=\frac{1+6k11k^2}{24{\left(k+1\right)}^2}\frac{r^2}{D_m} \\ B=2D_m \end{gathered}$$

$$\begin{gathered} \mathrm{Where}{\mathrm{D}}_{\mathrm{m}}=\mathrm{diffusion}\mathrm{coefficient}\mathrm{of}\mathrm{solute}\mathrm{in}\mathrm{mobile}\mathrm{phase} \\ k=\mathrm{retention}\mathrm{factor} \\ d=\mathrm{thickness}\mathrm{of}\mathrm{stationary}\mathrm{phase} \\ {D}_s=\mathrm{diffusion}\mathrm{coefficient}\mathrm{of}\mathrm{solute}\mathrm{in}\mathrm{stationary}\mathrm{phase} \end{gathered}$$

$$\begin{gathered} H=\left(6.0脳{10}^{-5}{m}^2/s\right){渭}_x+(2.09脳{10}^{-3}s){渭}_x \\ B=2D_M=\left(6.0脳{10}^{-5}{m}^2/s\right) \\ {D}_m=3.0脳{10}^5{m}^2/s \\ Forthesecondterm, \\ {C}_s+C_m=2.09脳{10}^{-3}s=\frac{2k}{3{(k+1)}^2}\frac{d^2}{D_s}+\frac{1+6k+11k^2}{24{(k+1)}^2}\frac{r^2}{d_m} \\ consumptionofcitrateandactivationofglycolysis. \end{gathered}$$

Substituting the values of all parameters to solve $D_s$

$$\begin{gathered} 2.09脳{10}^{-3}\mathrm{s}=\frac{2\left(8.0\right)}{3{\left(8.0+1\right)}^2}\frac{{(3.0脳{10}^{-6}\mathrm{m})}^2}{{\mathrm{D}}_{\mathrm{s}}} \\ +\frac{1+6(8.0)+11{\left(80\right)}^2}{24({(8.0)+1)}^2}\frac{{(2.65脳{10}^{-4}\mathrm{m})}^2}{(3.0脳{10}^{-5}{\mathrm{m}}^2/\mathrm{s})} \\ {D}_{\mathit{s}}\mathit{=}5.0脳{10}^{-10}{m}^{\mathit{2}}\mathit{/}s \end{gathered}$$

Diffusion coefficient in mobile phase=$\frac{3.0脳{10}^{-5}{m}^2/s}{5.0脳{10}^{-10}{m}^2/s}=6.0脳{10}^4$

Diffusion coefficient in mobile phase is $6.0脳{10}^{-4}$times higher than the diffusion coefficient in stationary phase. The diffusion coefficient of mobile is greater than the diffusion coefficient in the stationary phase because it is easier for the diffusion of solute through Helium gas than through liquid phase.