Question

Determine the composition of the liquid equilibrium with a vapor containing 70 mol% benzene 30 mol%...

Determine the composition of the liquid equilibrium with a vapor containing 70 mol% benzene 30 mol% toluene if the system exists in a vessel under 2 atm pressure. Predict the equilibrium pressure

Science   Chemistry   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

we know that

Rault's law

Mole fraction of liquid benzene X Pressure of pure benzene = parital pressure of benzene in vapour phase

Dalton's law

Mole fraction of benzene in liquid phase X total pressure of system = Partial pressure in vapour phase

Mole fraction of benzene in liquid phASE

= (total pressure - Pressure of pure toluene) / (Pressure of pure benzene + pressure of pure toluene)

Mole fraction of toluene = Mole fraction of toluene X Pressure of pure benzene / Total pressure

Given :

Total pressure = 2 atmophsere

The composition of liquid = 30% benzene and 70% toluene

The parital pressures will be

Partial pressure of benzene = Mole fraction X total pressure = 0.3 X 2atm = 0.6 atm

Partial pressure of toulene = 0.7 X 2 = 1.4 atm

We need temperature to find the equilibrium pressure

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
A mixture of Mol-100 kmol containing 70% benzene and 30% toluene must be separated at a...
A mixture of Mol-100 kmol containing 70% benzene and 30% toluene must be separated at a total pressure of 101.325 KPA (1 atm). A differential distillation column and an equilibrium(flash) distillation column are available in the enterprise to perform this operation. If 45 kmol distillate (top product) is obtained; a -) the composition of the distillate and remaining liquid obtained by differential distillation, B -) determine the composition of distillate and liquid obtained from equilibrium distillation. What distillation process would...
A binary liquid mixture of benzene and toluene is in equilibrium with its vapour at a...
A binary liquid mixture of benzene and toluene is in equilibrium with its vapour at a pressure of 1.5 atm. The liquid mole fractions of benzene and toluene are equal. Show that vapour-liquid equilibrium occurs at a temperature of 379.6 K and calculate the corresponding mole fractions of benzene and toluene in the vapour phase. You may assume ideal solution behaviour. Antoine’s coefficients for toluene: A = 16.014 , B = 3094.5 , C = -53.75 Antoine’s coefficients for benzene:...
What is the total vapor pressure at 20°C of a liquid solution containing 0.29 mole fraction...
What is the total vapor pressure at 20°C of a liquid solution containing 0.29 mole fraction benzene, C6H6, and 0.71 mole fraction toluene, C6H5CH3? Assume that Raoult’s law holds for each component of the solution. The vapor pressure of pure benzene at 20°C is 75 mmHg; that of toluene at 20°C is 22 mmHg
A vapor mixture of benzene and toluene is slowly cooled inside a constant volume vessel. Initially...
A vapor mixture of benzene and toluene is slowly cooled inside a constant volume vessel. Initially the pressure inside the vessel is 300 mm Hg and the temperature is 70 C. As the vessel is cooled, the pressure inside the vessel decreases. Assume the vapor behaves like an ideal gas and take the dew point of the mixture to be 60 C. What is the mole fraction of benzene in the initial vapor mixture?
An ideal solution is made from 5.00 mol of benene and 3.25 mol of toluene. At...
An ideal solution is made from 5.00 mol of benene and 3.25 mol of toluene. At 298K, the vapor pressure of the pure substances are p*benzene= 96.4 torr and p*toluene= 28.9 torr. a) The pressure above this solution is reduced from normal pressure. At what pressure does the solution first boil at this temperature? b) What is the composition (% benzene and % toluene) of the vapor under these conditions?
A vapor stream that is 65.0 mole% styrene and 35.0 mole% toluene is in equilibrium with...
A vapor stream that is 65.0 mole% styrene and 35.0 mole% toluene is in equilibrium with a liquid mixture of the same two species. The pressure in the system is 150 mmHg absolute. Use Raoult’s law to estimate the composition of the liquid and the system temperature.
Distillation- McCabe-Thiele A saturated vapor feed (pure vapor at the dew point) containing 52 mol% toluene...
Distillation- McCabe-Thiele A saturated vapor feed (pure vapor at the dew point) containing 52 mol% toluene and 48 mol% n-octane is to be fractionated at 101.3 kPa abs. to give a distillate containing 95 mol% toluene at 10 kmol/hr and a bottoms containing 5 mol% toluene. Use McCabe-Thiele graphical method to answer the following questions: a) Draw a vapor-liquid equilibrium diagram. Do this in excel and use gridlines to produce a nice figure that you can use for the rest...
1) Calculate the mole fraction of benzene and toluene in the vapor in a solution of...
1) Calculate the mole fraction of benzene and toluene in the vapor in a solution of both with Xbenzene = 0.763. (At 25°C, the vapor pressure of benzene is 96.0 mm Hg and 30.3 mm Hg for toluene). 2) Calculate the freezing point of a solution prepared by dissolving 15.0 g of Na2SO4 in 100 g of water. Kf for water is 1.86 °C.kg/mol.
Benzene is evaporating into a closed, well-mixed 20-L vessel. Assume the surface area of the Benzene...
Benzene is evaporating into a closed, well-mixed 20-L vessel. Assume the surface area of the Benzene is 150 cm2 . Benzene has a molecular weight of 78 g/mol, liquid density of 0.88 g/mL, vapor pressure of 0.125 atm., liquid activity coefficient of 2400 (25 °C and 1 atm), solubility of 1780 mg/L and an octanol-water coefficient of log KBow=2.0 (mass concentration basis). a) How much chemical (grams) would have to be added to reach a benzene concentration of 200 mg/L...
A liq mixture of benzene-toluene is to be distilled in a fractionating tower at 101.3 kPa...
A liq mixture of benzene-toluene is to be distilled in a fractionating tower at 101.3 kPa pressure. The feed of 100 kg mol/h is liq and it contains 45 mole % benzene and 55 mole % toluene and enters at 327.6 K (130 ◦F). A distillate containing 95 mole % benzene and 5 mole % toluene and a bottoms containing 10 mole % benzene and 90 mole % toluene are to be obtained. The reflux ratio is 4:1. The average...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT