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Chemical Engineering Fluid Mechanics Difficulty: Medium

The friction factor for turbulent flow in a hydraulically smooth pipe

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Yield of coke oven gas in low temperature carbonisation of coal is about __________ Nm 3 /ton of dry coal. A rigid vessel containing three moles of nitrogen gas at 30°C is heated to 250°C. Assume the average capacities of nitrogen to be C p = 29.1 J/mole.°C and, C v = 20.8 J/mole.°C. The heat required, neglecting the heat capacity of the vessel, is Viscose rayon . . . . . . . . If the internal energy of an ideal gas decreases by the same amount as the work done by the system, then the Coal containing large quantity of __________ are difficult to wash.