Homework Answers
a.) Ethanol and Dodecane completely miscible at 13°C
b) At mole fraction 0.50 and 2.0°C the composition of ethanol and dodecane is 3:7 because both are miscible at 13°C and relative amounts are 35% and 65% with respect to ethanol and dodecane
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Liquid-Liquid Equilibrium (Miscibility Gap) Mixture of Ethanol and Dodecane BB Trg Miscibility Gap ONWA I 0...
Consider the phase diagram below for a mixture of chloroform and methanol, looking at how the...
Consider the phase diagram below for a mixture of chloroform and methanol, looking at how the boiling point changes with composition at constant pressure. If you started with a solution that was Xchloroform = 0.1 at a temperature of 333 K, is it possible to use fractional distillation to purify this solution to nearly 100% chloroform? Approximately what concentration (in mole fraction) would you expect you could achieve through fractional distillation? Curves calculated by mod. UNIFAC (Dortmund) Temperature Minimum Azeotrope...
thats all information i got (b) A saturated vapour of methanol and water contains 45 mol%...
thats all information i got
(b) A saturated vapour of methanol and water contains 45 mol% methanol and is to be separated using an enriching column. 250 kmol/h is fed to the bottom of the column operating at atmospheric pressure. Vapour from the top of the column is to contain 85 mol% methanol. A total condenser operates at the top of the column with a reflux ratio of 1.5 If CMO applies, determine the bottoms composition, the internal flow rates...
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...
Consider the phase diagram shown below, which represents a liquid-vapour equilibrium. Label all regions, and indicate...
Consider the phase diagram shown below, which represents a liquid-vapour equilibrium. Label all regions, and indicate the number of composition and phases present at the points labelled b, d, e, f, g, and k. Temperature, T 0.2 0.8 0.4 0.6 Mole fraction of B,
Problem 2 2800 2600 OA 2400 11 2200 w Pressure (kPa) 2000 16001L 1400 1200+ 0...
Problem 2 2800 2600 OA 2400 11 2200 w Pressure (kPa) 2000 16001L 1400 1200+ 0 0.1 0.2 0.8 0.9 0.3 0.4 0.5 0.6 0.7 Mole fraction n-pentane Consider the n-pentane (1) + methanol (2) system at 422.6 K in the figure above. Numbered black dots are provided on the Pxy diagram, and they are all at 422.6 K. For each of the points, report the following information: (a) Equilibrium phases (liquid, vapor, dr both liquid and vapor) (b) Composition...
2. [20pt] Consider the temperature-composition phase diagram shown below, which represents a solid-liquid equilibrium based on...
2. [20pt] Consider the temperature-composition phase diagram shown below, which represents a solid-liquid equilibrium based on a (liquid) mixture of A and B at high temperature. Temperature, T DY 0.16 0.23 0.57 0.67 0.84 0.2 0.8 0.4 0.6 Mole fraction of B, XE (a) Label all regions of the diagram according to the chemical species exist in that region and their phases. Be precise the composition of solid formed. (10pt) (b) Indicate the number of species and phases present at...
Nicotine |H2O T u210 P 2 61 Tm P 1 0 0.2 0.4 0.6 0.8 1 Mole fraction of nicotine, X Temperature, 0/°C The phase diag...
Nicotine |H2O T u210 P 2 61 Tm P 1 0 0.2 0.4 0.6 0.8 1 Mole fraction of nicotine, X Temperature, 0/°C The phase diagram for nicotine and water is shown here. Note the two boundaries for pure water (left) and pure nicotine (right) and mole fractions of nicotine across the horizontal axis. The letter "P" means phases, and this diagram has two regions: single-phase (one liquid, fully dissolved solid), and the other two-phase (two liquids) Here, the curve...
Diagram 1 Liquid-Vapor Phase Diagram for a Binary Mixture of A and B 90 80 Temp...
Diagram 1 Liquid-Vapor Phase Diagram for a Binary Mixture of A and B 90 80 Temp (°C) 70 60 50 0.6 1.0 0.2 0.4 0.8 Mole Fraction of Organic Molecule A Refer to the Diagram 1 The liquid-vapor phase diagram for mixtures of Organic A (molar mass: 96.2 g/mole) and Organic B (molar mass = 70.21 g/mole). From the diagram, the boiling point of pure Organic A is: REPORT YOUR ANSWER TO 2 DIGITS ACCURACY DO NOT PUT UNITS IN...
at you 7.54 Consider a binary mixture of a and b at T 300K and P = 40 kPa. A graph of the fugacity of species a as a fu...
at you 7.54 Consider a binary mixture of a and b at T 300K and P = 40 kPa. A graph of the fugacity of species a as a function of mole fraction is shown below. Use Henry's law as the reference state for species a and the Lewis/Randall rule for species b. Show all your work 40 38 36 T-300 K P: 40 kPa 34 32 30 28 26 24 22 20 18 16 14 12 10 4 2...
A saturated liquid feed with a composition of 45 mole-% benzene and 55 mole-% toluene is...
A saturated liquid feed with a composition of 45 mole-% benzene and 55 mole-% toluene is distilled in a plate column at the rate of 250 kmol/h. Overhead product contains 97 mole-% benzene and the bottom product contains 5 mole-% benzene. A total condenser and a partial reboiler are used. The reflux ratio employed is 1.5 times the minimum, RD 1.5 RDmin Find the number of theoretical plates required for this separation, the heat duties of the condenser and reboiler....
Consider the phase diagram below for a mixture of chloroform and methanol, looking at how the boiling point changes with composition at constant pressure. If you started with a solution that was Xchloroform = 0.1 at a temperature of 333 K, is it possible to use fractional distillation to purify this solution to nearly 100% chloroform? Approximately what concentration (in mole fraction) would you expect you could achieve through fractional distillation? Curves calculated by mod. UNIFAC (Dortmund) Temperature Minimum Azeotrope...
thats all information i got
(b) A saturated vapour of methanol and water contains 45 mol% methanol and is to be separated using an enriching column. 250 kmol/h is fed to the bottom of the column operating at atmospheric pressure. Vapour from the top of the column is to contain 85 mol% methanol. A total condenser operates at the top of the column with a reflux ratio of 1.5 If CMO applies, determine the bottoms composition, the internal flow rates...
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...
Consider the phase diagram shown below, which represents a liquid-vapour equilibrium. Label all regions, and indicate the number of composition and phases present at the points labelled b, d, e, f, g, and k. Temperature, T 0.2 0.8 0.4 0.6 Mole fraction of B,
Problem 2 2800 2600 OA 2400 11 2200 w Pressure (kPa) 2000 16001L 1400 1200+ 0 0.1 0.2 0.8 0.9 0.3 0.4 0.5 0.6 0.7 Mole fraction n-pentane Consider the n-pentane (1) + methanol (2) system at 422.6 K in the figure above. Numbered black dots are provided on the Pxy diagram, and they are all at 422.6 K. For each of the points, report the following information: (a) Equilibrium phases (liquid, vapor, dr both liquid and vapor) (b) Composition...
2. [20pt] Consider the temperature-composition phase diagram shown below, which represents a solid-liquid equilibrium based on a (liquid) mixture of A and B at high temperature. Temperature, T DY 0.16 0.23 0.57 0.67 0.84 0.2 0.8 0.4 0.6 Mole fraction of B, XE (a) Label all regions of the diagram according to the chemical species exist in that region and their phases. Be precise the composition of solid formed. (10pt) (b) Indicate the number of species and phases present at...
Nicotine |H2O T u210 P 2 61 Tm P 1 0 0.2 0.4 0.6 0.8 1 Mole fraction of nicotine, X Temperature, 0/°C The phase diagram for nicotine and water is shown here. Note the two boundaries for pure water (left) and pure nicotine (right) and mole fractions of nicotine across the horizontal axis. The letter "P" means phases, and this diagram has two regions: single-phase (one liquid, fully dissolved solid), and the other two-phase (two liquids) Here, the curve...
Diagram 1 Liquid-Vapor Phase Diagram for a Binary Mixture of A and B 90 80 Temp (°C) 70 60 50 0.6 1.0 0.2 0.4 0.8 Mole Fraction of Organic Molecule A Refer to the Diagram 1 The liquid-vapor phase diagram for mixtures of Organic A (molar mass: 96.2 g/mole) and Organic B (molar mass = 70.21 g/mole). From the diagram, the boiling point of pure Organic A is: REPORT YOUR ANSWER TO 2 DIGITS ACCURACY DO NOT PUT UNITS IN...
at you 7.54 Consider a binary mixture of a and b at T 300K and P = 40 kPa. A graph of the fugacity of species a as a function of mole fraction is shown below. Use Henry's law as the reference state for species a and the Lewis/Randall rule for species b. Show all your work 40 38 36 T-300 K P: 40 kPa 34 32 30 28 26 24 22 20 18 16 14 12 10 4 2...
A saturated liquid feed with a composition of 45 mole-% benzene and 55 mole-% toluene is distilled in a plate column at the rate of 250 kmol/h. Overhead product contains 97 mole-% benzene and the bottom product contains 5 mole-% benzene. A total condenser and a partial reboiler are used. The reflux ratio employed is 1.5 times the minimum, RD 1.5 RDmin Find the number of theoretical plates required for this separation, the heat duties of the condenser and reboiler....
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