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A membrane made of 01 mm thick soft rubber separates pure O2 at 1 atm and 25°C from air at 3 atm pressure Determine the mass flow rate of O2 through the membrane per unit area and the direction of

A membrane made of 0.1-mm-thick soft rubber separates pure O2 at 1 atm and 25°C from air at 3 atm pressure. Determine the mass flow rate of O2 through the membrane per unit area and the direction of flow.

2. Consider a brick house that is maintained at 20°C and 60 percent relative humidity at a location where the atmospheric pressure is 85 kPa. The walls of the house are made of 20-cm-thick brick whose permeance is 23 x 10-12 kg/s·m2 ·Pa. Taking the vapor pressure at the outer side of the wallboard to be zero, determine the maximum amount of water vapor that will diffuse through a 3-m 3 5-m section of a wall during a 24-h period.

Jul 23 2020 View more View Less

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