【Test Your Knowledge】Basic Chemical Engineering Knowledge (16)
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1. The ideal gas law is _______________. 2. Safety valves can be classified into ________, __________, and _______ according to the gas discharge method. 3. Usually, halogens refer to ______, _____, _____, ______, and _____—a total of five elements. 4. When starting a single-stage centrifugal pump, _________ should be closed first, and then _________ is started in order to prevent the ____________ from becoming too high and causing the motor to burn out. 5. In the heat exchange between the fluids on both sides of the partition, the flow patterns of the fluids are ________, ________, ________, _______. 6. The power consumption quota refers to the amount of _________, ________, ________, and ________ required to produce one unit of product. Answer key: 1. PV=nRT 2. Closed, semi-closed, open 3. F, Cl, Br, I, At 4. Outlet valve, electric motor, motor starting power 5. Co-current, counter-current, cross-current, baffled flow 6. Water, electricity, steam, fuel. Did you get it right? This post was last edited by zhangyong6404 on 2009-3-30 16:30.]
1. The ideal gas law is PV=nRT_____________. 2. Safety valves can be classified into ________, __________, and _______ according to the gas discharge method. 3. Generally, halogens refer to five elements: _fluorine_, _chlorine_, _bromine_, _iodine_, and _astatine_. 4. When starting a single-stage centrifugal pump, the _______ outlet valve _______ should be closed first, and then the _____ motor _______ should be started; this is to prevent the ______ shaft power________ from becoming too high and causing the motor to burn out. 5. In the heat exchange between the fluids on both sides of the partition, the flow patterns of the fluids include ______ parallel flow__, _tangential flow_______, _bifurcated flow_______, and ____counterflow_____/. 6. The power consumption quota refers to the amount of _________, ________, ________, and ________ required to produce one unit of product. This post was last edited by liuwenqiu on 2009-3-29 16:44.]
1. pv=nrt 2. Fully enclosed, semi-enclosed, and open types 3. Fluorine (F), chlorine (Cl), bromine (Br), iodine (I), astatine (At) 4. Outlet, pump, shaft power 5. Co-current, counter-current, cross-flow, mixed flow 6. ?
1. pv=nrt 2. Fully enclosed, semi-enclosed, and open types 3. Fluorine (F), chlorine (Cl), bromine (Br), iodine (I), astatine (At) 4. Outlet, pump, shaft power 5. Co-current, counter-current, cross-flow, mixed flow 6. Water, electricity, steam, oil
1. pv=nrt 2. Fully enclosed, semi-enclosed, and open types 3. Fluorine (F), chlorine (Cl), bromine (Br), iodine (I), astatine (At) 4. Outlet, pump, shaft power 5. Co-current, counter-current, cross-flow, mixed flow 6. Water
1. The ideal gas law is ______PV=nRT_______. 3. Generally, halogens refer to the five elements: ___fluorine___, ___chlorine___, ___bromine___, ___iodine___, and ___astatine___. Just these two!
1. The ideal gas law is PV=nRT_____________. 2. Safety valves can be classified into ________, __________, and _______ according to the gas discharge method. 3. Generally, halogens refer to five elements: _fluorine_, _chlorine_, _bromine_, _iodine_, and _astatine_. 4. When starting a single-stage centrifugal pump, the _______ outlet valve _______ should be closed first, and then the _____ motor _______ should be started; this is to prevent the ______ shaft power________ from becoming too high and causing the motor to burn out. 5. In the heat exchange between the fluids on both sides of the partition, the flow patterns of the fluids include ______ parallel flow__, _tangential flow_______, _bifurcated flow_______, and ____counterflow_____/. 6. The power consumption quota refers to the amount of _________, ________, ________, and ________ required to produce one unit of product.
1. pV=nRT or pV=(m/M)RT, where: p = pressure, in Kpa； V – volume, m3 ； n – amount of substance, mol ； T-temperature, K ； m-mass, kg ； M: Molar mass of the substance, in kg/kmol. R: Universal gas constant, 8.314 kJ/(kmol·K). 2. Fully enclosed, semi-enclosed, open type. 3. Fluorine (F), chlorine (Cl), bromine (Br), iodine (I), astatine (At). 4. Pump outlet valve, motor, starting power. 5. Co-current, counter-current, cross-current, baffled flow. 6. Water, heat, electricity, gas (vapor). Last edited by zhangyong6404 on 2009-3-29 18:33
1. PV=nRT 2. Fully enclosed, semi-enclosed, and open types 3. F, Cl, Br, I, At. 4. Outlet valve, centrifugal pump, shaft power 5. Co-current, counter-current, baffled, cross-flow 6. Water, electricity, steam, power
1. PV=nRT 2. Fully enclosed, semi-enclosed, and open types 3. Fluorine (F), chlorine (Cl), bromine (Br), iodine (I), astatine (At) 4. Outlet, pump, shaft power 5. Co-current, counter-current, cross-flow, mixed flow 6. Water, electricity, water vapor, power
1. PV = nRT; P1V1/T1 = P2V2/T2 2. Fully enclosed, semi-enclosed, and open types 3. Fluorine (F), chlorine (Cl), bromine (Br), iodine (I), astatine (At) 4. Outlet valve, pump, starting current 5. Co-current, counter-current, cross-flow, mixed flow 6. Water, electricity, steam, oil
1. The ideal gas law is PV=nRT_____________. 2. Safety valves can be classified into ________, __________, and _______ according to the gas discharge method. 3. Generally, halogens refer to five elements: _fluorine_, _chlorine_, _bromine_, _iodine_, and _astatine_. 4. When starting a single-stage centrifugal pump, the _______ outlet valve _______ should be closed first, and then the _____ motor _______ should be started; this is to prevent the ______ shaft power________ from becoming too high and causing the motor to burn out. 5. In the heat exchange between the fluids on both sides of the partition, the flow patterns of the fluids include ______ parallel flow__, _tangential flow_______, _bifurcated flow_______, and ____counterflow_____/. 6. The power consumption quota refers to the amount of ______?___, _____?___, ______?__ and _____?____ required to produce one unit of product.
pV=nRT fully closed, semi-closed, open type F, Cl, Br, I, At outlet valve, motor, shaft power co-current, counter-current, cross-flow, counter-flow water, electricity, steam, fuel
1. pV=nRT or pV=(m/M)RT 2. Fully enclosed, semi-enclosed, open type 3. Fluorine (F), chlorine (Cl), bromine (Br), iodine (I), astatine (At) 4. Pump outlet valve, motor, starting power 5. Co-current, counter-current, cross-current, baffled flow 6. Water, electricity, steam, fuel
The ideal gas law is ___PV=nRT____________. 2. Safety valves can be classified according to the gas discharge method into three types: ___direct-acting___, ___pilot-operated___, and ___load-assisted___. 3. Generally, halogens refer to the five elements: ___F___, ___Cl__, ___Br__, ___I___, and ___Ar__. 4. When starting a single-stage centrifugal pump, the ____exit valve_______ should be closed first, and then the ____motor_______ should be started; this is done to prevent excessive ____power________ from damaging the motor. 5. In the heat exchange between the fluids on both sides of the partition, the flow patterns of the fluids include ___co-current_____、___counter-current_____、___cross-flow_____、and ____turbulent flow_____。 6. The energy consumption quota refers to the amount of ___water____, ___electricity____, ___fuel____, and ____steam_____ required to produce one unit of product.
1. PV=nRT 2. Fully enclosed, semi-enclosed, open 3. F, Cl, Br, I, At. 4. Outlet valve, centrifugal pump, shaft power 5. Co-current, counter-current, baffled, cross-flow 6. Water, electricity, steam, power
1. pv=nrt; 2. fully enclosed, semi-enclosed, and open types; 3. fluorine (F), chlorine (Cl), bromine (Br), iodine (I), astatine (At); 4. outlet, pump, shaft power; 5. co-current, counter-current, cross-flow, reverse flow; 6. water, electricity, steam, air. Last edited by zhchb1979 on 2009-3-29 22:59.]
1. PV=nRT 2. Fully enclosed, semi-enclosed, open 3. F, Cl, Br, I, At. 4. Outlet valve, centrifugal pump, shaft power 5. Co-current, counter-current, cross-flow, mixed flow 6. Water, electricity, steam, fuel
These are quite simple! 1 pv=nRt 2 Fully enclosed, semi-enclosed, and open types 3 Fluorine (F), chlorine (Cl), bromine (Br), iodine (I), astatine (At) 4 Outlet, pump, shaft power 5 Co-current, counter-current, cross-flow, mixed flow 6 Water, electricity, steam, oil
1. pv=nrt 2. Fully enclosed, semi-enclosed, open type 3. Fluorine (F), chlorine (Cl), bromine (Br), iodine (I), astatine (At) 4. Outlet, pump, shaft power 5. Co-current, counter-current, cross-flow, mixed flow 6. Water, electricity, steam, oil