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7.By measuring the equilibrium between liquid and vapor phases of a solution at 30°C at 1.00...
The measurement of the compositions of the liquid and vapor phases
The measurement of the compositions of the liquid and vapor phases, in equilibrium, of acetone (A) and methanol (M) solutions showedthat, at 57.2 ºC, under a pressure of 1.00 atm, we have xA = 0.430 when yA = 0.536. Calculate the activities and coefficients ofactivity of the two components of this solution based on Raoult's law. Vapor pressures of pure components,at the temperature mentioned, they are: pA∗= 105 kPa and pM∗= 73.5 kPa. (xA is the molar fraction in the...
3. Consider the hexafluorobenzene(1)-cyclohexane(2) mixture at 50 °C. The vapor pressures for the pure species are...
3. Consider the hexafluorobenzene(1)-cyclohexane(2) mixture at 50 °C. The vapor pressures for the pure species are psat = 34.10 kPa and Pat = 36.30 kPa. a. (10%) Assuming Raoult's law, calculate the pressure range of the 2-phase region when the mole fraction of hexaflourobenzene is 0.8. b. (10%) Experiments show that this mixture at 50°C has an azeotrope. Show mathematically that Raoult's law is unable to predict an azeotropic behavior. c. (10%) Use the modified Raoult's law with the van...
the liquid and ya the mole fraction in the vapor.) 8. At 90°C, the vapor pressure...
the liquid and ya the mole fraction in the vapor.) 8. At 90°C, the vapor pressure of pure methylbenzene is 400 Torr and that of pure 1,2- dimethylbenzene is 150 Torr. What the composition of a liquid mixture that boils at 90°C when the pressure is 0.50 atm? What is the composition of the vapor produced?
3. Consider the hexafluorobenzene(1)-cyclohexane(2) mixture at 50°C. The vapor pressures for the pure species are Prat...
3. Consider the hexafluorobenzene(1)-cyclohexane(2) mixture at 50°C. The vapor pressures for the pure species are Prat = 34.10 kPa and Pat = 36.30 kPa. a. (10%) Assuming Raoult's law, calculate the pressure range of the 2-phase region when the mole fraction of hexaflourobenzene is 0.8. b. (10%) Experiments show that this mixture at 50-C has an azeotrope. Show mathematically that Raoult's law is unable to predict an azeotropic behavior. c. (10%) Use the modified Raoult's law with the van Laar...
9.9 Table 9.9 lists measured values of gas-phase composition and total pressure for the binary two-phase...
9.9 Table 9.9 lists measured values of gas-phase composition and total pressure for the binary two-phase methanol-benzene system at constant temperature and varied liquid-phase compo- sition. XA is the mole fraction of methanol in the liquid mixture, and ya is the mole fraction of methanol in the equilibrated gas phase. (a) For each of the 16 different liquid-phase compositions, tabulate the pyrtial pressures of A and B in the equilibrated gas phase. (b) Plot PA and Ps versus xA on...
9. At 50°C, a liquid solution composed of A (with a mole fraction of 0.28) and...
9. At 50°C, a liquid solution composed of A (with a mole fraction of 0.28) and B has a total vapor pressure of 182 torr and a partial pressure of A of 62 torr. The vapor pressure of pure liquid A is 254 torr and that of pure liquid B is 169 torr. (a) Calculate the activity and the activity coefficient of each component of the liquid based on the Raoult's Law. (b) Calculate the Henry's law constant of A...
10 AL 39.9°C. the vapor pressures of pure ethanol and isooctane are 130.4 torr and 43.9...
10 AL 39.9°C. the vapor pressures of pure ethanol and isooctane are 130.4 torr and 43.9 torr respectively. At this same temperature (39.9°C), a solution of ethanol-isooctane is prepared that has a mole fraction, Xethanol = 0.90, a vapor phase with yethanol = 0.67, and p = 185.9 torr. (a) Calculate the activity and activity coefficients of each component. (b) Calculate the vapor pressure of this solution using Raoult's law. (8 pts)
i need help with 7 & 8? 5. What is meant by "Fractionating column efficiency"? Under...
i need help with 7 & 8?
5. What is meant by "Fractionating column efficiency"? Under what conditions (with respect to the fractionating column and the liquid mixture to be separated) fractional distillation process should work well? 6. What is meant by "theoretical plate" of a fractional distillation column? 7. Find out the approximate mole fraction and %composition of the boiling liquid (on the liquid curve) corresponding to the vapor mixture at three points A, B, and C (on the...
In an azeotropic solution, the liquid and vapor phases have equal mole fractions of solute at...
In an azeotropic solution, the liquid and vapor phases have equal mole fractions of solute at equilibrium. Find the numerical value of the Henrt's Law coefficient that is azeotropic at its standard boiling point. Include units.
please answer clearly 1 (Lecture LOI) 50 m3 of a 35-C gas mixture with composition 98 miole percent air(3), 2 mole p...
please answer clearly
1 (Lecture LOI) 50 m3 of a 35-C gas mixture with composition 98 miole percent air(3), 2 mole percent toluene(1) is contacted with 400 kg of 35°C pure n-decane(2). The vapor-liquid system is allowed to come to equilibrium isothermally at 35 oC at a constant pressure of 1.0 atm. What are the final compositions of the liquid and vapor phases? You should neglect dissolution of air in the liquid, but you must account for evaporation of n-decane....
3. Consider the hexafluorobenzene(1)-cyclohexane(2) mixture at 50 °C. The vapor pressures for the pure species are psat = 34.10 kPa and Pat = 36.30 kPa. a. (10%) Assuming Raoult's law, calculate the pressure range of the 2-phase region when the mole fraction of hexaflourobenzene is 0.8. b. (10%) Experiments show that this mixture at 50°C has an azeotrope. Show mathematically that Raoult's law is unable to predict an azeotropic behavior. c. (10%) Use the modified Raoult's law with the van...
the liquid and ya the mole fraction in the vapor.) 8. At 90°C, the vapor pressure of pure methylbenzene is 400 Torr and that of pure 1,2- dimethylbenzene is 150 Torr. What the composition of a liquid mixture that boils at 90°C when the pressure is 0.50 atm? What is the composition of the vapor produced?
3. Consider the hexafluorobenzene(1)-cyclohexane(2) mixture at 50°C. The vapor pressures for the pure species are Prat = 34.10 kPa and Pat = 36.30 kPa. a. (10%) Assuming Raoult's law, calculate the pressure range of the 2-phase region when the mole fraction of hexaflourobenzene is 0.8. b. (10%) Experiments show that this mixture at 50-C has an azeotrope. Show mathematically that Raoult's law is unable to predict an azeotropic behavior. c. (10%) Use the modified Raoult's law with the van Laar...
9.9 Table 9.9 lists measured values of gas-phase composition and total pressure for the binary two-phase methanol-benzene system at constant temperature and varied liquid-phase compo- sition. XA is the mole fraction of methanol in the liquid mixture, and ya is the mole fraction of methanol in the equilibrated gas phase. (a) For each of the 16 different liquid-phase compositions, tabulate the pyrtial pressures of A and B in the equilibrated gas phase. (b) Plot PA and Ps versus xA on...
9. At 50°C, a liquid solution composed of A (with a mole fraction of 0.28) and B has a total vapor pressure of 182 torr and a partial pressure of A of 62 torr. The vapor pressure of pure liquid A is 254 torr and that of pure liquid B is 169 torr. (a) Calculate the activity and the activity coefficient of each component of the liquid based on the Raoult's Law. (b) Calculate the Henry's law constant of A...
10 AL 39.9°C. the vapor pressures of pure ethanol and isooctane are 130.4 torr and 43.9 torr respectively. At this same temperature (39.9°C), a solution of ethanol-isooctane is prepared that has a mole fraction, Xethanol = 0.90, a vapor phase with yethanol = 0.67, and p = 185.9 torr. (a) Calculate the activity and activity coefficients of each component. (b) Calculate the vapor pressure of this solution using Raoult's law. (8 pts)
i need help with 7 & 8?
5. What is meant by "Fractionating column efficiency"? Under what conditions (with respect to the fractionating column and the liquid mixture to be separated) fractional distillation process should work well? 6. What is meant by "theoretical plate" of a fractional distillation column? 7. Find out the approximate mole fraction and %composition of the boiling liquid (on the liquid curve) corresponding to the vapor mixture at three points A, B, and C (on the...
please answer clearly
1 (Lecture LOI) 50 m3 of a 35-C gas mixture with composition 98 miole percent air(3), 2 mole percent toluene(1) is contacted with 400 kg of 35°C pure n-decane(2). The vapor-liquid system is allowed to come to equilibrium isothermally at 35 oC at a constant pressure of 1.0 atm. What are the final compositions of the liquid and vapor phases? You should neglect dissolution of air in the liquid, but you must account for evaporation of n-decane....
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