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Diffusion

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Question 1 of 5

A Large Volume of pure water at $25^{\circ} \mathrm{C}$ is flowing parallel to a flat plate of solid benzoic acid, where L = 0.244 m in the direction of flow.

The water velocity is 0.061 m/s. The solubility of Benzoic Acid in water is 0.02948 kmoL/m3. The diffusivity of Benzoic acid is 1.245 ⨯ 10–9 m ² /s. Calculate the mass transfer coefficient.

Given : μ = 8.71 ⨯10–4 kg/m.s , ρ = 996 kg/m ³ and Sh = $0.664 R e^{1 / 2} S c^{1 / 3}$

$3.92 \times 10^{-6}$

$1.96 \times 10^{-6}$

$7.84 \times 10^{-6}$

None

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Diffusion

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Question 1 of 5

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