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Molecular diffusivity $\left(\mathrm{D}_{\mathrm{AB}}\right)$ of water vapour in air is $2.6 \times 10^{-5} \mathrm{~m}^{2} \mathrm{~s}^{-1}$ over an effective distance of $3 \mathrm{~mm}$. Density and coefficient of viscosity of air are $1.2 \mathrm{~kg} \mathrm{~m}^{-3}$ and $2 \times 10^{-5} \mathrm{~kg} \mathrm{~m}^{-1} \mathrm{~s}^{-1},$ respectively. Sherwood Number $\left(\mathrm{N}_{\mathrm{Sh}}\right)$ for water vapour in air is____________


Question ID - 156515 | Toppr Answer

Molecular diffusivity $\left(\mathrm{D}_{\mathrm{AB}}\right)$ of water vapour in air is $2.6 \times 10^{-5} \mathrm{~m}^{2} \mathrm{~s}^{-1}$ over an effective distance of $3 \mathrm{~mm}$. Density and coefficient of viscosity of air are $1.2 \mathrm{~kg} \mathrm{~m}^{-3}$ and $2 \times 10^{-5} \mathrm{~kg} \mathrm{~m}^{-1} \mathrm{~s}^{-1},$ respectively. Sherwood Number $\left(\mathrm{N}_{\mathrm{Sh}}\right)$ for water vapour in air is____________

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