1. A standard gas cylinder contains about 1.8 cubic feet. If a cylinder contains nitrogen at 25 C and 1 atm.: a. Calcula

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1 A Standard Gas Cylinder Contains About 1 8 Cubic Feet If A Cylinder Contains Nitrogen At 25 C And 1 Atm A Calcula 1 (49.13 KiB) Viewed 12 times

1. A standard gas cylinder contains about 1.8 cubic feet. If a cylinder contains nitrogen at 25 C and 1 atm.: a. Calculate the mass of nitrogen assuming: i. Ideal gas behavior ii. Real gas behavior (use 'z' factor) b. If the temperature of the tank is raised to 50 C, calculate the i. pressure. ii. mass in the tank kg kg psia kg c. If the valve were opened and the pressure was reduced to 200 psia, at 25°C, calculate the mass which was removed. (assume ideal has behavior) kg 2. It is 37 C and 1 atm outside .. whew! If the relative humidity is 75%, calculate the mass of water in the air. kg/m³ 3. We wish to dry grain with a stream of hot air at 60 C, 1 bar with relative humidity of 10%. For 5000 kg of wet grain with moisture content 34%, how long would it take to dry the grain to 3% moisture if the air flow rate was 1000 SCM/minute. You may assume that the grain and leaving air are also at 80 C and that the relative humidity of the air as it leaves the drier is 75%. (HINT.. calculate how much water is picked up by the air in 1 minute & divide into total water to be removed...)