【Test Your Knowledge】Basic Chemical Engineering Knowledge (7)
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1. The Reynolds number of a fluid is a numerical value composed of four physical quantities: the fluid’s _____, _____, ______, and ______. 2. The sedimentation process by which solid particles are separated from a fluid can be divided into ________ and __________. 3. The general formula for an alcohol molecule is __________, and its functional group is ______________. 4. In industrial automatic control systems, the most basic control laws are ______, ______, ________, and ________. 5. The process of iron rusting, expressed using an equation. 6. When the gas and liquid phases in the absorption process reach equilibrium, the concentration of the absorbed substance in the liquid phase is called ______. The partial pressure of the solute in the gas phase is called ______. Answer key: 1. Flow velocity v, viscosity μ, density ρ, inner diameter of pipe d. 2. Gravity sedimentation, centrifugal sedimentation. 3. R-OH – OH. 4. On-off control, proportional control, integral control, derivative control. 5. 4Fe + 2H2O + 3O2 == 2Fe2O3·H2O. 6. Equilibrium solubility, equilibrium partial pressure. Did you get them right? This post was last edited by zhangyong6404 on 2009-3-21 22:41.]
1. Flow rate, equivalent diameter, viscosity, density? 2. Gravity sedimentation, centrifugal sedimentation? 3. ROH, -OH 4. Proportional, proportional derivative, proportional integral, PID? 5. Forms oxides with water and oxygen. 6. Solubility, unknown. By the way, is d considered a property of flow (a physical quantity)? This post was last edited by zhangyong6404 on 2009-3-20 20:58.]
1. Flow rate, equivalent diameter, viscosity, density 2. Gravity sedimentation, centrifugal sedimentation 3. ROH, -OH 4. Proportional control, proportional derivative, proportional integral, PID 5. 4Fe + 3O2 = 2Fe2O3 6. Solubility, equilibrium partial pressure Last edited by brucehan on 2009-3-20 19:42]
Let me answer: 1. Flow rate, equivalent diameter, viscosity, density; 2. Gravity sedimentation, centrifugal sedimentation; 3. ROH, -OH; 4. Proportional control, proportional derivative control, proportional integral control, PID; 5. Forms oxides with water and oxygen; 6. Solubility, equilibrium partial pressure
1. Flow state, flow rate, viscosity, density 2. Gravity sedimentation, centrifugal sedimentation 3. R-OH, -OH 4. Proportional control, integral control, proportional-integral control, proportional-differential control 5. 2Fe + 3H2O + 3/2O2 => 2Fe(OH)3 6. Solubility, equilibrium partial pressure
1. Flow rate, equivalent diameter, viscosity, density 2. Gravity sedimentation, centrifugal sedimentation 3. ROH, --OH 4. Proportional control, proportional-differential control, proportional-integral control, PID 5. 4Fe + 3O2 = 2Fe2O3 6. Solubility, equilibrium partial pressure
1. Flow rate, equivalent diameter, viscosity, density 2. Gravity sedimentation, centrifugal sedimentation 3. ROH, -OH 4. Proportional control, proportional derivative, proportional integral, PID 5. 4Fe + 3O2 = 2Fe2O3 6. Solubility, equilibrium partial pressure
1. Flow rate, equivalent diameter, viscosity, density? 2. Gravity sedimentation, centrifugal sedimentation? 3. ROH, -OH 4. Proportional, proportional derivative, proportional integral, PID? 5. Forms oxides with water and oxygen. 6. Solubility, unknown.
1. Equivalent diameter, flow rate, viscosity, density 2. Gravity sedimentation, centrifugal sedimentation 3. R-OH, -OH 4. Proportional control, integral control, proportional-integral control, proportional-differential control 5. 2Fe + 3H2O + 3/2O2 = 2Fe(OH)3; 2Fe(OH)3 = Fe2O3 + 3H2O 6. Solubility, equilibrium partial pressure
1. Flow rate, equivalent diameter, viscosity, density? 2. Gravity sedimentation, centrifugal sedimentation? 3. ROH, -OH 4. Proportional, proportional derivative, proportional integral, PID? 5. Forms oxides with water and oxygen. 6. Solubility, unknown.
1. Diameter. Viscosity. Flow rate. Density 2. Gravity. Centrifugal force 3. R-OH.-OH 4. Ratio. Integration. Proportional integration. Proportional differentiation 5. 4Fe + 6H2O + 3O2 = 4Fe(OH)3 6. Solubility, equilibrium partial pressure Last edited by armtt on 2009-3-20 23:25 in this post]
1. Flow rate, equivalent diameter, viscosity, density 2. Gravity sedimentation, centrifugal sedimentation 3. ROH, -OH 4. Proportional control, proportional-differential control, proportional-integral control, PID control 5. Forms oxides with water and oxygen: 2Fe + 3H2O + 3/2O2 = 2Fe(OH)3; 2Fe(OH)3 = Fe2O3 + 3H2O 6. Solubility, equilibrium pressure
1. The Reynolds number of a fluid is a numerical value derived from four physical quantities: the fluid’s flow velocity, equivalent diameter, viscosity, and density. 2. The sedimentation process by which solid particles are separated from a fluid can be divided into gravitational sedimentation and centrifugal sedimentation. 3. The general formula for an alcohol molecule is ROH, and its functional group is OH-. 4. In industrial automatic control systems, the most basic control laws are proportional, proportional-differential, proportional-integral, and PID. 5. The process of iron rusting, expressed using an equation. 4Fe + 3O2 = 2Fe2O3 6. When the gas and liquid phases in an absorption process reach equilibrium, the concentration of the absorbed substance in the liquid phase is referred to as solubility. The partial pressure of the solute in the gas phase is called the saturated vapor pressure.
My answer: 1. Flow rate, pipe diameter, fluid viscosity, density. 2. Gravity settling, centrifugal settling 3. R-OH -OH 4. Proportional control, proportional-differential control, proportional-integral control, PID 5. 4Fe + 3O2 = 2Fe2O3 6. Solubility, saturated vapor pressure
1. Flow rate, equivalent diameter, viscosity, density 2. Gravity sedimentation, centrifugal sedimentation 3. ROH, -OH 4. Proportional control, proportional derivative, proportional integral, PID 5. 4Fe + 3O2 = 2Fe2O3 6. Solubility, equilibrium partial pressure
1 Flow rate, equivalent diameter, viscosity, density 2 Gravity sedimentation, centrifugal sedimentation 3 ROH, -OH 4 Proportional control, proportional derivative, proportional integral, PID 5 2Fe + 3H2O + 3/2O2 = 2Fe(OH)3 2Fe(OH)3 = Fe2O3 + 3H2O 6 Solubility, equilibrium partial pressure
1. Flow rate, equivalent diameter, viscosity, density 2. Gravity sedimentation, centrifugal sedimentation 3. ROH, -OH 4. Proportional control, proportional derivative, proportional integral, PID 5. 4Fe + 3O2 = 2Fe2O3 6. Solubility, equilibrium partial pressure
1. Equivalent diameter, flow rate, viscosity, density 2. Gravity sedimentation, centrifugal sedimentation 3. R-OH, -OH 4. Proportional control, integral control, proportional-integral control, proportional-differential control 5. 2Fe + 3H2O + 3/2O2 = 2Fe(OH)3; 2Fe(OH)3 = Fe2O3 + 3H2O 6. Solubility, equilibrium partial pressure
1. Flow rate, equivalent diameter, viscosity, density 2. Gravity sedimentation, centrifugal sedimentation 3. ROH, --OH 4. Proportional control, proportional-differential control, proportional-integral control, PID 5. 4Fe + 3O2 + nH2O = 2Fe2O3 + n/2H2O 6. Solubility, equilibrium partial pressure
1. The Reynolds number of a fluid is a numerical value derived from four physical quantities: the fluid’s _density__, _viscosity__, __characteristic velocity__, and _characteristic length__. 2. The sedimentation process by which solid particles are separated from a fluid can be divided into _natural sedimentation_______ and ___centrifugal sedimentation_______. 3. The general formula for an alcohol molecule is __R-OH________, and its functional group is __-OH__________. 4. In industrial automatic control systems, the most basic control laws are _proportional____, __derivative____, ___integral____, and ________. 5. The process of iron rusting, expressed using an equation. 2Fe + O2 + 2H2O = 2Fe(OH)2, 4Fe(OH)2 + O2 + 2H2O = 4Fe(OH)3, 2Fe(OH)3 = Fe2O3 + 3H2O. 6. When the gas and liquid phases in the absorption process reach equilibrium, the concentration of the absorbed substance in the liquid phase is referred to as _saturated solubility__. The partial pressure of the solute in the gas phase is called the __equilibrium partial pressure__.
1. Flow rate, equivalent diameter, viscosity, density 2. Gravity sedimentation, centrifugal sedimentation 3. ROH, -OH 4. Proportional control, proportional derivative, proportional integral, PID 5. 4Fe + 3O2 + XH2O ==== 2Fe2O3·XH2O 6. Solubility, equilibrium partial pressure or saturated partial pressure