For a system of n-heptane and n-octane at 1atm: a) Calculate the dewpoint temperature for vapor...
For a system of n-heptane and n-octane at 1atm:
a) Calculate the dewpoint temperature for vapor mole fractions of
n-heptane at 0, 0.2, 0.4,
0.6, 0.8, 1.0. Briefly explain how the calculations was carried
out.
b) Calculate the bubble temperature for liquid mole fractions of
n-heptane at 0, 0.2, 0.4,
0.5, 0.6, 0.7, 0.8, 0.9, 1.0. Briefly explain how the calculations
was carried out.
(You do not need to show working for every mole fraction, show the
formula used and
working for 2 of the points) (You may use Microsoft Excel to help
you in the calculation)
c) Plot the results (manually) on a graph, show and label clearly
the dew point and bubble
point line on your plot.
Homework Answers
Add Answer to:
For a system of n-heptane and n-octane at 1atm:
a) Calculate the dewpoint temperature for vapor...
At 330 K the vapor pressure of pure n-pentane is 1.92 atm and the vapor pressure...
At 330 K the vapor pressure of pure n-pentane is 1.92 atm and the vapor pressure of pure n-octane is 0.07 atm. If 330K is the normal boiling point for a solution of these two substances, what will the mole fractions of each substance be in that solution? [If you can't figure out how to do this mathematically, you can estimate from the plot..... for reduced credit.] Octane+Pentane Pvaps at 330K po Pentane P (atm) Ptot Pv Pent Pv Oct...
Problem 6.60 Bubble and Dew Points from Raoult's Law Calculate the following: a. The bubble point...
Problem 6.60 Bubble and Dew Points from Raoult's Law Calculate the following: a. The bubble point temperature of a liquid mixture with a molar composition of 70.0 mol% n-hexane and 30.0 mol% n-heptane at 1.00 atm and the composition (mole fractions) of the vapor in equilibrium with this mixture. Bubble Point: Yhexane Heptane b. The dew-point temperature of a gas mixture with a molar composition of 25.0% n-hexane, 15.0% n- heptane, and 60.0% air at 1.00 atm and the composition...
1. For the following T-X diagram for a mixture of A&B, do the following: (1) Show...
1. For the following T-X diagram for a mixture of A&B, do the following: (1) Show vapor, liquid and vapor-liquid region (2) Show bubble-point and dew-point line (3) Show tie line corresponding to 400 °F, 600 psia & 40 mole% A (4) Estimate boiling point of A (5) Estimate boiling point of B 6) Determine equilibrium vapor mole % for a mixture of 40 mole% B at 600 F & 600 psia (7) Determine the composition of vapor and liquid...
Q.1 Chloroform (1) and n-heptane (2) forms a 2 phase systems for which the following plot...
Q.1 Chloroform (1) and n-heptane (2) forms a 2 phase systems for which the following plot is givern: 6.0 5.5 5.0 4.5 4.0 3.5 3.0 2.5 2.0 1.5 1.0 0.5 0.0 6.0 5.5 5.0 4.5 4.0 3.5 2.5- 2.0- 1.5 1.0 0.5 0.0 0.0 0.2 0.4 0.6 0.8 1.0 (a) Use Van Laar equation to calculate y?, y2 and P for x1-02. Given P1 at-44.51 kPa; P2 at-65.54kPa (b) Do the activity coefficients show positive or negative deviation from activity...
Question 2 of Question on Vapour pressure (b) If a solution containing 35 mole % n-hexane...
Question 2 of Question on Vapour pressure
(b) If a solution containing 35 mole % n-hexane is vaporized,
what is the composition of the initial vapour formed? What is the
boiling point of the solution?
Vapour pressure data for n-hexane and n-octane are given in the following table. Vapour Pressure (mmHg) n-Hexane n-Octane Temperature (°F) 155.7 760 121 175 1025 173 200 1480 278 225 2130 434 250 3000 654 258.2 3420 760 Fig. Q1 (a) Construct a T-xy plot...
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...
please ignore the first photo and only answer #86 and #66 Calculate the integrals in Problems...
please ignore the first photo and only answer #86 and #66
Calculate the integrals in Problems 72-74 by partial fractions and then by using the indicated substitution. Show that the results you get are the same. da: 72. :s ; substitution x = sin 0. In Problems 86-87, decide whether the statements are true or false. Give an explanation for your answer. dt can be made easier to evaluate by using the substitution t = 3 tan . 86. The...
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...
Number 3 2. Calculate AVmix, A Hmix, ASmix, and AG mix for mixing 2 moles of...
Number 3
2. Calculate AVmix, A Hmix, ASmix, and AG mix for mixing 2 moles of argon, 1 mole of helium, and 3 moles of hydrogen gas carried out under constant conditions of 1 atm and 298 K. Assume ideal behavior. Vem mol- 3. Shown is the graph of partial molar volumes (in cmº/mol or mL/mol) of water (A) and methanol (B) solutions at 25°C: a. From the graph, what are the molar volumes of pure water and pure methanol?...
code provided 5. (Lecture L08) This problem is concerned with binary mixtures of n-octane and n-nonane...
code provided
5. (Lecture L08) This problem is concerned with binary mixtures of n-octane and n-nonane at atmos pheric pressure a. Calculate and graph the Txy diagram b. Derive the formula for Hx(T,Xx), the liquid enthalpy, as a function of temperature and composition. c. Calculate the enthalpy of saturated liquid with n-octane mole fraction x 0.4 d. Derive the formula for Hy(T, y), the vapor enthalpy, as a function of temperature and composition e. Calculate the enthalpy of saturated vapor...
At 330 K the vapor pressure of pure n-pentane is 1.92 atm and the vapor pressure of pure n-octane is 0.07 atm. If 330K is the normal boiling point for a solution of these two substances, what will the mole fractions of each substance be in that solution? [If you can't figure out how to do this mathematically, you can estimate from the plot..... for reduced credit.] Octane+Pentane Pvaps at 330K po Pentane P (atm) Ptot Pv Pent Pv Oct...
Problem 6.60 Bubble and Dew Points from Raoult's Law Calculate the following: a. The bubble point temperature of a liquid mixture with a molar composition of 70.0 mol% n-hexane and 30.0 mol% n-heptane at 1.00 atm and the composition (mole fractions) of the vapor in equilibrium with this mixture. Bubble Point: Yhexane Heptane b. The dew-point temperature of a gas mixture with a molar composition of 25.0% n-hexane, 15.0% n- heptane, and 60.0% air at 1.00 atm and the composition...
1. For the following T-X diagram for a mixture of A&B, do the following: (1) Show vapor, liquid and vapor-liquid region (2) Show bubble-point and dew-point line (3) Show tie line corresponding to 400 °F, 600 psia & 40 mole% A (4) Estimate boiling point of A (5) Estimate boiling point of B 6) Determine equilibrium vapor mole % for a mixture of 40 mole% B at 600 F & 600 psia (7) Determine the composition of vapor and liquid...
Q.1 Chloroform (1) and n-heptane (2) forms a 2 phase systems for which the following plot is givern: 6.0 5.5 5.0 4.5 4.0 3.5 3.0 2.5 2.0 1.5 1.0 0.5 0.0 6.0 5.5 5.0 4.5 4.0 3.5 2.5- 2.0- 1.5 1.0 0.5 0.0 0.0 0.2 0.4 0.6 0.8 1.0 (a) Use Van Laar equation to calculate y?, y2 and P for x1-02. Given P1 at-44.51 kPa; P2 at-65.54kPa (b) Do the activity coefficients show positive or negative deviation from activity...
Question 2 of Question on Vapour pressure
(b) If a solution containing 35 mole % n-hexane is vaporized,
what is the composition of the initial vapour formed? What is the
boiling point of the solution?
Vapour pressure data for n-hexane and n-octane are given in the following table. Vapour Pressure (mmHg) n-Hexane n-Octane Temperature (°F) 155.7 760 121 175 1025 173 200 1480 278 225 2130 434 250 3000 654 258.2 3420 760 Fig. Q1 (a) Construct a T-xy plot...
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 ignore the first photo and only answer #86 and #66
Calculate the integrals in Problems 72-74 by partial fractions and then by using the indicated substitution. Show that the results you get are the same. da: 72. :s ; substitution x = sin 0. In Problems 86-87, decide whether the statements are true or false. Give an explanation for your answer. dt can be made easier to evaluate by using the substitution t = 3 tan . 86. 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...
Number 3
2. Calculate AVmix, A Hmix, ASmix, and AG mix for mixing 2 moles of argon, 1 mole of helium, and 3 moles of hydrogen gas carried out under constant conditions of 1 atm and 298 K. Assume ideal behavior. Vem mol- 3. Shown is the graph of partial molar volumes (in cmº/mol or mL/mol) of water (A) and methanol (B) solutions at 25°C: a. From the graph, what are the molar volumes of pure water and pure methanol?...
code provided
5. (Lecture L08) This problem is concerned with binary mixtures of n-octane and n-nonane at atmos pheric pressure a. Calculate and graph the Txy diagram b. Derive the formula for Hx(T,Xx), the liquid enthalpy, as a function of temperature and composition. c. Calculate the enthalpy of saturated liquid with n-octane mole fraction x 0.4 d. Derive the formula for Hy(T, y), the vapor enthalpy, as a function of temperature and composition e. Calculate the enthalpy of saturated vapor...
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