【Test Your Knowledge】Basic Chemical Engineering Knowledge (27)
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1. The compression processes of gases include _________, ________ and ________ processes. 2. The industrial methods for addition polymerization include ____________, ____________, ___________, and ____________. 3. Surfactants can be classified according to their molecular structure into ___________, __________, and __________. 4. Under normal circumstances, for fluids prone to scaling, the flow velocity inside the pipes should be greater than _______ m/s, and the flow velocity between the pipes should be greater than ______ m/s. 5. Pascal’s law states that the pressure applied to a confined liquid can be transmitted in all directions within the liquid at the same________ as the original pressure. 6. Mist entrainment refers to the phenomenon in which gas carries liquid mist droplets from the ________ tray to the _______ tray. 7. The amount of ________ required when the temperature of a unit mass of a substance increases by ________ °C is called the specific heat of that substance. 8. The common methods for softening hard water are: ___________ softening method and ______________ softening method. 9. There are two types of ventilators commonly used in industry: ____________ and ____________. 10. Ordinary split-tube heat exchangers are used in situations where ______ does not exceed ____, otherwise it will affect their service life. Answer key: 1. Isothermal compression, adiabatic compression, variable-temperature compression. 2. Emulsion polymerization, solution polymerization, bulk polymerization, suspension polymerization. 3. Anionic, cationic, non-ionic. 4. 1, 0.5. 5. Size, transfer. 6. Lower layer, upper layer. 7. 1, heat. 8. Lime–soda ash, ion exchanger. 9. Axial flow type, centrifugal type. 10. Temperature difference, 50℃. Last edited by zhangyong6404 on 2009-4-10 12:48.]
Many people don’t know these, but I want to try to participate. 1: Constant temperature, adiabatic; 3: Anionic surfactants, cationic surfactants, amphoteric surfactants; 6: Lower layer, upper layer; 7: 1 Energy; 9: Centrifugal, axial flow. That’s all I know, and it might not be correct either, hehe
1. The compression processes of gases include _isothermal compression_, __adiabatic compression_, and _polytropic compression_. 2. The industrial methods of addition polymerization include __bulk polymerization__, __solution polymerization__, __suspension polymerization__, and __emulsion polymerization__. 3. Surfactants can be classified according to their molecular structure into _lipophilic groups__, _hydrophilic groups__ and __________. 4. Under normal circumstances, for fluids prone to scaling, the flow velocity inside the tubes should be greater than _3__ m/s, while the flow velocity between the tubes should be greater than __5__ m/s. 5. Pascal’s law states that the pressure applied to a confined fluid can be transmitted in all directions within the fluid at the same __magnitude__. 6. Mist entrainment refers to the phenomenon in which gas carries liquid mist droplets from the _lower_ tray to the _upper_ tray. 7. The _heat__ required to raise the temperature of a unit mass of a substance by _1_℃ is called the specific heat of that substance. 8. The common methods for softening hard water include: the _precipitation_ method and the __ion exchange__ method. 9. There are two types of fans commonly used in industry: __centrifugal fans___ and ___rotary fans_________. 10. Ordinary split-tube heat exchangers are used in situations where ______ does not exceed ____, otherwise it will affect their service life.
1. The compression processes of gases include _isothermal compression_, __adiabatic compression_, and _polytropic compression_. 2. The industrial methods of addition polymerization include __bulk polymerization__, __solution polymerization__, __suspension polymerization__, and __emulsion polymerization__. 3. Surfactants can be classified according to their molecular structure into _lipophilic groups and hydrophilic groups. 4. Under normal circumstances, for fluids prone to scaling, the flow velocity inside the tubes should be greater than _3__ m/s, while the flow velocity between the tubes should be greater than __5__ m/s. 5. Pascal’s law states that the pressure applied to a confined fluid can be transmitted in all directions within the fluid at the same __magnitude__. 6. Mist entrainment refers to the phenomenon in which gas carries liquid mist droplets from the _lower_ tray to the _upper_ tray. 7. The _heat__ required to raise the temperature of a unit mass of a substance by _1_℃ is called the specific heat of that substance. 8. The common methods for softening hard water include: the _precipitation_ method and the __ion exchange__ method. 9. There are two types of fans commonly used in industry: __centrifugal fans___ and ___rotary fans_________. 10. Ordinary split-tube heat exchangers are used in ____________ situations; otherwise, it will affect their service life. This post was last edited by liuwenqiu on 2009-4-9 21:16]
1. Isothermal compression, adiabatic compression, polytropic compression 2. Bulk polymerization, solution polymerization, suspension polymerization, emulsion polymerization 3. Anionic surfactants, cationic surfactants, amphoteric surfactants 4. 3, 5 5. Size, transfer 6. Lower layer, upper layer 7. 1, Heat 8. Precipitation method, ion exchange 9. Centrifugal fan, rotary fan 10. Temperature difference, 50℃
1. Reciprocating piston type, rotary piston type, fully enclosed type 2. Radical polymerization, cationic polymerization, anionic polymerization, and coordinated anionic polymerization 3. Ionic surfactants, non-ionic surfactants, oligomeric surfactants 4. Greater than ___1___ m/s; the inter-tube flow velocity is greater than ___0.5___ m/s 5. Size, transfer 6. Lower layer, upper layer 7. 1. Heat 8. Ion exchange method, lime-soda method 9. Axial type, centrifugal type 10. Temperature difference between inlet and outlet, rated temperature difference
1. The compression processes of gases include _isothermal compression_, __adiabatic compression_, and _polytropic compression_. 2. The industrial methods of addition polymerization include __bulk polymerization__, __solution polymerization__, __suspension polymerization__, and __emulsion polymerization__. 3. Surfactants can be classified according to their molecular structure into _lipophilic groups and hydrophilic groups. 4. Under normal circumstances, for fluids prone to scaling, the flow velocity inside the tubes should be greater than _3__ m/s, while the flow velocity between the tubes should be greater than __5__ m/s. 5. Pascal’s law states that the pressure applied to a confined fluid can be transmitted in all directions within the fluid at the same __magnitude__. 6. Mist entrainment refers to the phenomenon in which gas carries liquid mist droplets from the _lower_ tray to the _upper_ tray.
1. The compression forms of gases include _work done_, __cooling__, and __phase change__ processes. 2. The industrial methods of addition polymerization include __radical polymerization__, __cationic polymerization__, _anionic polymerization__ and __coordinative anionic polymerization__. 3. Surfactants can be classified according to their molecular structure into __anionic_, _cationic_, and __non-ionic_. 4. Under normal circumstances, for fluids prone to scaling, the flow velocity inside the pipes should be greater than ___1__ m/s, while the flow velocity between the pipes should be greater than 0.5 m/s. 5. Pascal’s law states that the pressure applied to a confined fluid can be transmitted in all directions within the fluid at the same _intensity_. 6. Mist entrainment refers to the phenomenon in which gas carries liquid mist droplets from the __N+1th__ tray to the __Nth__ tray of the tower. 7. The _energy_ required to raise the temperature of a unit mass of a substance by _1_℃ is called the specific heat of that substance. 8. The common methods for softening hard water are: __boiling__ for softening, and ___ion exchange__ for softening. 9. There are two types of fans commonly used in industry: __centrifugal__ and ___axial flow__. 10. Ordinary split-tube heat exchangers are used in applications where the _heat transfer temperature difference_ does not exceed _50 degrees Celsius_; otherwise, it will affect their service life.
1. The compression processes of gases include _isothermal compression_, __adiabatic compression_, and _polytropic compression_. 2. The industrial methods of addition polymerization include __bulk polymerization__, __solution polymerization__, __suspension polymerization__, and __emulsion polymerization__. 3. Surfactants can be classified into _ionic_ and __non-ionic______ types based on their molecular structure. 4. Under normal circumstances, for fluids prone to scaling, the flow velocity inside the tubes should be greater than _3__ m/s, while the flow velocity between the tubes should be greater than __5__ m/s. 5. Pascal’s law states that the pressure applied to a confined fluid can be transmitted in all directions within the fluid at the same __magnitude__. 6. Mist entrainment refers to the phenomenon in which gas carries liquid mist droplets from the _lower_ tray to the _upper_ tray. 7. The _energy_ required to raise the temperature of a unit mass of a substance by _1_℃ is called the specific heat of that substance. 8. The common methods for softening hard water include: the _precipitation_ method and the __ion exchange__ method. 9. There are two types of ventilators commonly used in industry: __centrifugal__ and ___rotary____. 10. Ordinary split-tube heat exchangers are used in applications where the temperature difference between the inlet and outlet ___ does not exceed ___ the rated temperature difference_; otherwise, it will affect their service life.
1. The compression processes of gases include _isothermal compression_, __adiabatic compression_, and _polytropic compression_. 2. The industrial methods of addition polymerization include __bulk polymerization__, __solution polymerization__, __suspension polymerization__, and __emulsion polymerization__. 3. Based on their molecular structure, surfactants can be divided into _anionic surfactants__, _cationic surfactants__, and _ampholytic surfactants__. 4. Under normal circumstances, for fluids prone to scaling, the flow velocity inside the tubes should be greater than _3__ m/s, while the flow velocity between the tubes should be greater than __5__ m/s. 5. Pascal’s law states that the pressure applied to a confined fluid can be transmitted in all directions within the fluid at the same __magnitude__. 6. Mist entrainment refers to the phenomenon in which gas carries liquid mist droplets from the _lower_ tray to the _upper_ tray. 7. The _heat__ required to raise the temperature of a unit mass of a substance by _1_℃ is called the specific heat of that substance. 8. The common methods for softening hard water include: the _precipitation_ method and the __ion exchange__ method. 9. There are two types of fans commonly used in industry: __centrifugal fans___ and ___axial flow fans_________. 10. In general, shell-and-tube heat exchangers are used in applications where the __actual flow rate__ does not exceed the ___design flow rate___; otherwise, it will affect their service life.
1. Isothermal compression； Adiabatic compression ； Variable compression 2, bulk polymerization ； solution polymerization ； Suspension polymerization ； Emulsion polymerization 3, Anionic and cationic surfactants ； Zwitterionic surfactants ； Non-ionic surfactant 4, 1 m/s ； 0.5m/s 5. Size ； Pass 6, next layer ； Upper layer: at 7, 1°C, heat 8, ion exchange method ； Membrane separation method 9. Centrifugal ventilator ； Axial flow fans 10: Cases where the temperature difference between the casing and the pipes does not exceed the set threshold (not very clear). Last edited by lxl328 on 2009-4-9 22:05.]
1. Isothermal compression, adiabatic compression, polytropic compression 2. Bulk polymerization, solution polymerization, suspension polymerization, emulsion polymerization 3. Anionic surfactants, cationic surfactants, amphoteric surfactants 4. 1 m/s, 3 m/s 5. Size, transfer 6. Lower layer, upper layer 7. 1, Heat 8. Precipitation method, ion exchange 9. Centrifugal fan, rotary fan 10. Temperature difference, 50℃
I don’t know about the other things, but I know this one. 8. The common methods for softening hard water include: the _precipitation_ method and the __ion exchange__ method.
1. The compression processes of gases include __isothermal compression__, _adiabatic compression_, and _polytropic compression_. 2. The industrial methods of addition polymerization include _solution polymerization_, _emulsion polymerization_, _suspension polymerization_, and _bulk polymerization_. 3. Surfactants can be classified according to their molecular structure into _anionic_, _cationic_, and _non-ionic_ types. 4. Under normal circumstances, for fluids prone to scaling, the flow velocity inside the tubes should be greater than __3_m/s, and the flow velocity between the tubes should be greater than _3 m/s. 5. Pascal’s law states that the pressure applied to a confined fluid can be transmitted in all directions within the fluid at the same _intensity_. 6. Mist entrainment refers to the phenomenon in which gas carries liquid mist droplets from the lower tray of the tower to the upper tray of the tower. 7. The _heat_ required to raise the temperature of a unit mass of a substance by _1_℃ is called the specific heat of that substance. 8. The common methods for softening hard water include: __chemical__ softening and _ion exchange resin_ softening. 9. There are two types of ventilators commonly used in industry: _centrifugal_ and __rotary_. 10. Ordinary split-tube heat exchangers are used in applications where the temperature difference does not exceed _50°C_; otherwise, it will affect their service life. _℃
1. The compression processes of gases include _isothermal_, __adiabatic_, and _polytropic_ processes. 2. The industrial methods of addition polymerization include __bulk polymerization__, __solution polymerization__, __suspension polymerization__, and __emulsion polymerization__. 3. Surfactants can be classified according to their molecular structure into _anionic surfactants__, _cationic surfactants__, and _non-ionic surfactants_. 4. Under normal circumstances, for fluids prone to scaling, the flow velocity inside the tubes should be greater than _1__ m/s, while the flow velocity between the tubes should be greater than __0.5_m/s. 5. Pascal’s law states that the pressure applied to a confined fluid can be transmitted in all directions within the fluid at the same __magnitude__. 6. Mist entrainment refers to the phenomenon in which gas carries liquid mist droplets from the _lower_ tray to the _upper_ tray. 7. The _heat__ required to raise the temperature of a unit mass of a substance by _1_℃ is called the specific heat of that substance. 8. The common methods for softening hard water include: the _precipitation_ method and the __ion exchange__ method. 9. There are two types of fans commonly used in industry: __centrifugal fans___ and ___axial flow fans_________. 10. Ordinary shell-and-tube heat exchangers are used in applications where the __temperature difference__ does not exceed ___50°C___; otherwise, it will affect their service life.
1. The compression processes of gases include _isothermal compression_, __adiabatic compression_, and _polytropic compression_. 2. The industrial methods of addition polymerization include __bulk polymerization__, __solution polymerization__, __suspension polymerization__, and __emulsion polymerization__. 3. Surfactants can be classified into _ionic_ and __non-ionic______ types based on their molecular structure. 4. Under normal circumstances, for fluids prone to scaling, the flow velocity inside the tubes should be greater than _3__ m/s, while the flow velocity between the tubes should be greater than __5__ m/s. 5. Pascal’s law states that the pressure applied to a confined fluid can be transmitted in all directions within the fluid at the same __magnitude__. 6. Mist entrainment refers to the phenomenon in which gas carries liquid mist droplets from the _lower_ tray to the _upper_ tray. 7. The _energy_ required to raise the temperature of a unit mass of a substance by _1_℃ is called the specific heat of that substance. 8. The common methods for softening hard water include: the _precipitation_ method and the __ion exchange__ method. 9. There are two types of ventilators commonly used in industry: __centrifugal__ and ___rotary____. 10. Ordinary split-tube heat exchangers are used in applications where the temperature difference between the inlet and outlet ___ does not exceed ___ the rated temperature difference_; otherwise, it will affect their service life.
1. Isothermal compression, adiabatic compression, polytropic compression 2. Bulk polymerization, solution polymerization, suspension polymerization, emulsion polymerization 3. Anionic surfactants, cationic surfactants, amphoteric surfactants 4. 3, 5 5. Size, transfer 6. Lower layer, upper layer 7. 1, Heat 8. Precipitation method, ion exchange 9. Centrifugal fan, rotary fan 10. Temperature difference, 50℃
1. Isothermal compression, adiabatic compression, polytropic compression 2. Bulk polymerization, solution polymerization, suspension polymerization, emulsion polymerization 3. Anionic surfactants, cationic surfactants, amphoteric surfactants 4. 3, 5 5. Size, transfer 6. Lower layer, upper layer 7. 1, Heat 8. Precipitation method, ion exchange 9. Centrifugal fan, rotary fan 10. Temperature difference, 50℃
Hehe. . . . I haven’t seen these things in ten years; it’s quite familiar. Apart from aggregation, surfactants, and water softening, it’s basically all concepts from chemical engineering principles.
1. Isothermal compression, adiabatic compression, polytropic compression 2. Bulk polymerization, solution polymerization, suspension polymerization, emulsion polymerization 3. Anionic surfactants, cationic surfactants, amphoteric surfactants 4. 1 m/s, 3 m/s 5. Size, transfer 6. Lower layer, upper layer 7. 1, Heat
1. The compression processes of gases include _____ isothermal _____, _____ adiabatic _____, and _____ polytropic _____ processes. 2. The industrial methods of addition polymerization include __bulk polymerization__, __solution polymerization__, __suspension polymerization__, and __emulsion polymerization__. 3. Surfactants can be classified according to their molecular structure into _cationic, non-ionic, and _anionic_______ types. 4. Under normal circumstances, for fluids prone to scaling, the flow velocity inside the pipes should be greater than ____3___ m/s, while the flow velocity between the pipes should be greater than ___5___ m/s. 5. Pascal’s law states that the pressure applied to a confined liquid can be transmitted in all directions within the liquid at the same _intensity_. 6. Mist entrainment refers to the phenomenon in which gas carries liquid mist droplets from the __lower______ tray to the __upper_____ tray. 7. The _____ amount of heat_____ required to raise the temperature of a unit mass of a substance by _1℃_ is called the specific heat of that substance. 8. The common methods for softening hard water include: __chemical softening method and ______ion exchange softening method____. 9. There are two types of ventilators commonly used in industry: __axial and centrifugal___. 10. Ordinary split-tube heat exchangers are used in applications where the temperature difference ___ does not exceed ___50°C___; otherwise, it will affect their service life.