A filling layer filled with solid particles having a density of 2500 kg/m^3 occupies a depth of 1 m in a container havin

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A filling layer filled with solid particles having a density of 2500 kg/m^3 occupies a depth of 1 m in a container havin

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A filling layer filled with solid particles having a density of 2500 kg/m^3 occupies a depth of 1 m in a container having a cross-sectional area of 0.04 m인. The mass of the solid filled in the layer is 50 kg and the average surface-volume diameter of the particles is 1 mm. A liquid with a density of 800 kg/m^3 and a viscosity of 0.002 Pa·s flows upward through the layer.
(1) Calculate the porosity of the layer.
(2) Calculate the input drop in the layer when the volume flow rate of the liquid is 1.44 m^3/h.
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