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Ex. 6: (Change of phase), using Cp to calculate Enthalpy A feed stream to a evaporation...
Ex. 6: (Change of phase), using Cp to calculate Enthalpy A feed stream to a evaporation unit contains an equi-molar...
Ex. 6: (Change of phase), using Cp to calculate Enthalpy A feed stream to a evaporation unit contains an equi-molar mixture of benzene and toluene at 10°C The vapour stream from the top of the evapoator contains 68.4 mol% benzene at 50 °C and the liquid stream from the bottom contains 40 mol% benzene at 50°C. Note: You need Cp (benzene, liquid), Cp (toluene, liquid), Cp (benzene vapour), Cp (toluene vapour), latent heat of vaporisation benzene, latent heat of vaporisation...
Evaporation of Sugar Solution in a Multiple-Effect Evaporator. A triple-effect evaporator with forward feed is...
Evaporation of Sugar Solution in a Multiple-Effect Evaporator. A triple-effect evaporator with forward feed is evaporating a sugar solution with negligible boiling- point rise (less than 1.0 K, which will be neglected) and containing 5 wt% solids to 25% solids. Saturated steam at 205 kPa abs is being used. The pressure in the vapor space of the third effect is 13.65 kPa. The feed rate is 22 680 kg/h and the tempera- ture 299.9 K. The liquid heat capacity...
Please could you answer ALL sub-questions 70 kg/h of a concentrate from an evaporation system containing...
Please could you answer ALL
sub-questions
70 kg/h of a concentrate from an evaporation system containing 55 wt.% CaCl2 at 90 °C and 101 kPa enters a continuous crystallizer. The saturated crystals of CaCl2. H20 leave at 10 °C. At 10 °C the solution contains 12.5 kg CaCl2/100 kg H20 and during the cooling 2% of the water entering the crystallizer is lost by evaporation. Additional information: 1. Atomic mass Ca = 40 g/mol, Cl = 35.5 g/mol, O =...
A mixture containing 42% benzene and 58% toluene by mass is fed to a distillation column....
A mixture containing 42% benzene and 58% toluene by mass is fed to a distillation column. A second mixture is also fed to the distillation column and has a composition of 65% toluene and 35% acetone by mass. The flowrates of the mixtures are 2500 kg h1 and 1500 kg h1 respectively. An overhead distillate exit stream of 800 kg h-1 containing 23% acetone and a bottom exit stream of 25% benzene are produced. Determine the bottom exit flowrate and...
6. Calculate the heat change, in kJ, if 8.7395x10 mg of carbon dioxide were produced in...
6. Calculate the heat change, in kJ, if 8.7395x10 mg of carbon dioxide were produced in the following reaction: C(3) + 01 kg) 4 CO (g) 3H" = -3935 /mol 7. Water vapor and gaseous nitrogen monoxide react to yield oxygen gas and ammonia. Calculate the enthalpy of formation of Ammonia given the following heats of formation: Nitrogen Monoxide AH = 90.4 kJ/mol, Water vapor AH -241 8 kJ/mol, AH = 904 kJ/mol 216
4. Comparison of process paths: Calculate the AH for 1 kg of water going from liquid...
4. Comparison of process paths: Calculate the AH for 1 kg of water going from liquid at the triple point of water (0.01 °C and 0.0061 bar) to saturated steam (100 °C, 1 atm) by two different process paths. The two paths are defined as a. liquid water at triple point to saturated vapor at the triple point, followed by heating the saturated vapor to 0.0061 bar to saturated vapor at 1 atm. b. liquid water at triple point heated...
#6-9 6. Calculate the enthalpy change for the reaction given below, using thermodynamic tables in your...
#6-9
6. Calculate the enthalpy change for the reaction given below, using thermodynamic tables in your book (Appendix 2): CH(g)+02(B) HO(g) + CO,(g) (not balanced) 7. Calcium carbonate decomposes at high temperature to form carbon dioxide and calcium oxide: CaCO3 CO2+ CaO Using data from the textbook (Apendix 2), determine the heat of reaction. 8. When potassium chloride reacts with oxygen under the right conditions, potassium chlorate is formed: 2 KCI+3 02 2KCIO3 Using data from the textbook (Appendix 2),...
Ex. 6: (Change of phase), using Cp to calculate Enthalpy A feed stream to a evaporation unit contains an equi-molar mixture of benzene and toluene at 10°C The vapour stream from the top of the evapoator contains 68.4 mol% benzene at 50 °C and the liquid stream from the bottom contains 40 mol% benzene at 50°C. Note: You need Cp (benzene, liquid), Cp (toluene, liquid), Cp (benzene vapour), Cp (toluene vapour), latent heat of vaporisation benzene, latent heat of vaporisation...
Please could you answer ALL
sub-questions
70 kg/h of a concentrate from an evaporation system containing 55 wt.% CaCl2 at 90 °C and 101 kPa enters a continuous crystallizer. The saturated crystals of CaCl2. H20 leave at 10 °C. At 10 °C the solution contains 12.5 kg CaCl2/100 kg H20 and during the cooling 2% of the water entering the crystallizer is lost by evaporation. Additional information: 1. Atomic mass Ca = 40 g/mol, Cl = 35.5 g/mol, O =...
A mixture containing 42% benzene and 58% toluene by mass is fed to a distillation column. A second mixture is also fed to the distillation column and has a composition of 65% toluene and 35% acetone by mass. The flowrates of the mixtures are 2500 kg h1 and 1500 kg h1 respectively. An overhead distillate exit stream of 800 kg h-1 containing 23% acetone and a bottom exit stream of 25% benzene are produced. Determine the bottom exit flowrate and...
6. Calculate the heat change, in kJ, if 8.7395x10 mg of carbon dioxide were produced in the following reaction: C(3) + 01 kg) 4 CO (g) 3H" = -3935 /mol 7. Water vapor and gaseous nitrogen monoxide react to yield oxygen gas and ammonia. Calculate the enthalpy of formation of Ammonia given the following heats of formation: Nitrogen Monoxide AH = 90.4 kJ/mol, Water vapor AH -241 8 kJ/mol, AH = 904 kJ/mol 216
4. Comparison of process paths: Calculate the AH for 1 kg of water going from liquid at the triple point of water (0.01 °C and 0.0061 bar) to saturated steam (100 °C, 1 atm) by two different process paths. The two paths are defined as a. liquid water at triple point to saturated vapor at the triple point, followed by heating the saturated vapor to 0.0061 bar to saturated vapor at 1 atm. b. liquid water at triple point heated...
#6-9
6. Calculate the enthalpy change for the reaction given below, using thermodynamic tables in your book (Appendix 2): CH(g)+02(B) HO(g) + CO,(g) (not balanced) 7. Calcium carbonate decomposes at high temperature to form carbon dioxide and calcium oxide: CaCO3 CO2+ CaO Using data from the textbook (Apendix 2), determine the heat of reaction. 8. When potassium chloride reacts with oxygen under the right conditions, potassium chlorate is formed: 2 KCI+3 02 2KCIO3 Using data from the textbook (Appendix 2),...
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