Crystal of salt (Na,SO.) dissolves in a large tank of pure water at 288 K. Estimate the flux of Na,SO, diffused from the crystal surface to the bulk solution. Assume that molecular diffusion occurs through a liquid film 0.085 mm thick surrounding the crystal. At the inner side of the film-adjacent to the crystal surface- the solution is saturated with Na,So, while at the outer side of the film the solution is pure water. The concentration of salt in water is 35wt% water and the density of the corresponding saturated solution is 1240 kg/m. The diffusivity of Na,SO. in dilute aqueous solution at 288 K is 10-'m'/s. The density of pure liquid water at 288 K is 999.8 kg/m'.(Mwt : Na -23 kg/kmol .S:64 kg/kmol .O-16 kg/kmol).

Crystal of salt (Na,SO.) dissolves in a large tank of pure water at 288 K. Estimate the flux of Na,SO, diffused from the crystal surface to the bulk solution. Assume that molecular diffusion occurs through a liquid film 0.085 mm thick surrounding the crystal. At the inner side of the film-adjacent to the crystal surface- the solution is saturated with Na,So, while at the outer side of the film the solution is pure water. The concentration of salt in water is 35wt% water and the density of the corresponding saturated solution is 1240 kg/m. The diffusivity of Na,SO. in dilute aqueous solution at 288 K is 10-'m'/s. The density of pure liquid water at 288 K is 999.8 kg/m'.(Mwt : Na -23 kg/kmol .S:64 kg/kmol .O-16 kg/kmol).

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

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Crystal of salt (Na,sO.) dissolvcs in a large tank of pure water at 288 K. Estimate the flux of
Na,SO, diffused from the crystal surface to the bulk solution. Assume that molecular
diffusion occurs through a liquid film 0.085 mm thick surrounding the crystal. At the inner
side of the film-adjacent to the crystal surface- the solution is saturated with Na,SO, while at
the outer side of the film the solution is pure water. The concentration of salt in water is
35wt% water and the density of the corresponding saturated solution is 1240 kg/m. The
diffusivity of Na,SO. in dilute aqueous solution at 288 K is 10-'m/s. The density of pure
liquid water at 288 K is 999.8 kg/m'.(Mwt: Na -23 kg/kmol .S:64 kg/kmol .0-16 kg/kmol).

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