Question: Water at 70C is passed through a polyethylene membrane of 25% porosity with an average pore diameter of 0.3 m and an average tortuosity of

Water at 70°C is passed through a polyethylene membrane of 25% porosity with an average pore diameter of 0.3 μm and an average tortuosity of 1.3. The pressures on the downstream and upstream sides of the membrane are 125 and 500 kPa, respectively. Estimate the flux of water in m³/m²-day.

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