3. Binary system acetonitrile(1)/nitromethane(2) conforms closely to Raoult's law. Vaporpressures for the pure species are given by the following Antoine equations:In P1sat/kPa=14.2724-2945.47t/°C+224.00In P2sat/kPa=14.2043-2972.64t/°C+209.00Prepare a Pxy diagram for a temperature of 75°C by calculating and plotting the mole fraction ofacetonitrile in the vapor phase y1, and the total pressure, P, for different values of X1 aspresented below:Mol fraction of acetonitrile in theliquid phase, X1Mol fraction of acetonitrile in theliquid phase, yTotal pressure, P(kPa)0.000.100.200.300.400.500.600.700.800.901.00Using your plot, estimate the pressure and liquid composition (X1 and X2) of this mixturewhen the vapor is 60-mol% acetonitrile.Using interpolation, calculate the pressure and X1 with the same given vapor compositionof acetonitrile. Compare your estimation and get the % error.

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Chemistry

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Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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11. Which of the following is the phase diagram of water-nicotine system? TIK |210 Composton of one PR1 P.2 292 200 P2 Cempn of second pha Liquid P=2 Liquid 273- Liquid P.1 P.1 dz da de Liquid, P= 2 Mole fraction of B, Mole traction of B. B C D E Temperature, T O rdue
At 90°C, the vapour pressure of methylbenzene is 54kPa and that of 1,3-dimethylbenzene is 18.0 kPa. What is the molar fraction of methylbenzene in the gas phase above the mixture containing 1 mol of methylbenzene and 2mol of 1,3-dimethylbenzene at this temperature (assume that these solvents form ideal solutions).
For an ethanol-chloroform mixture at 545 mmHg, determine: a) The Liquid - Vapor equilibrium diagram (1pt) b) Boiling temperature with 20% mass of ethanol (1pt) c) The composition of a mixture that has gone through two distillation stages (1pt)
4G 72% 4:37 = bartleby Q&A Science / Chemistry / Chemic... / 11th Ed... : A student determined the molar m... A A student determined the molar mass of an unknown non-dissociating liquid by the method described in this experiment. She found that the equilibrium temperature of a mixture of ice and pure water was indicated to be +0.4°C on her thermometer. When she added 9.9 g of her sample to the mixture, the temperature, after thorough stirring, fell to -3.7°C. She then poured off the solution through a screen into a beaker. The mass of the solution was 84.2 g. a. What was the freezing point depression? °C b. What was the molality of the unknown liquid? m c. What mass of unknown liquid was in the decanted solution? d. What mass of water was in the decanted solution?
3. The second Virial coefficient of an equimolar binary vapor mixture of methane and n-hexane is -517 cm'/mol at 50°C. What is B at the same temperature for a mixture containing 25 mol% methane and 75 mol% n-hexane. At 50°C B =-33 cm'/mol for methane, B =-1512cm'/mol for n-hexane.
We discussed the temperature-composition phase diagram for a binary system given below. Mole fraction for B at key points are indicated. °C P = 1 Vapour b, 80 P = 2 P= 2 Liquid P = 1 Liquid P= 2 10- Qa, 0.70 XB 0.20 Mole fraction of B, 0.85 0.9 Starting from point a, of the binary mixture, what is the mole fraction of component B in the vapor when the mixture begins boiling? 0.20 0.90 Uncertain, since more information is needed. 0.85 0.70 ООООО Temperature, T
6. Using phase diagram for the mixtures of benzene and ethylbenzene shown below, estimate: Benzene / Ethybenzene at 1.00 atm By NRTL A) Boiling point of pure ethylbenzene 140- 135- 130- B) Boiling point (Tpp) of solution with molar fraction of benzene 0.3. 125 120- 115 110- C) Composition of vapor phase (molar fractions of both liquids) above the solution with molar fraction of benzene 0.3 at Töp. 105- 100 90 85 80- 75- a1 02 03 04 05 06 0.7 0.8 09 Benzene Mole Fracfioni
Section 9.11 P9.27 G. Ratcliffe and K. Chao [Canadian Journal of Chemi- cal Engineering 47 (1969), 148] obtained the following tabulated results for the variation of the total pressure above a solution of isopropanol (Pj = 1008 Torr) and n-decane (P = 48.3 Torr) as a function of the mole fraction of the n-decane in the solution and vapor phases. Using these data, calculate the activity coefficients for both components using a Raoult's law standard state. I| 2 Р (Torr) X2 Y2 942.6 0.1312 0.0243 909.6 0.2040 0.0300 883.3 0.2714 0.0342 868.4 0.3360 0.0362 830.2 0.4425 0.0411 786.8 0.5578 0.0451 758.7 0.6036 0.0489
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Calculate the solubility of 1,4-dibromobenzene in benzene at 25.000C and at 45.000 assuming that these two compounds form ideal mixtures. The enthalpy of fusion of 1,4-dibromo benzene is 20.39 kJ mol-1 and its melting point is 87.400C. Report the solubility of 1,4-dibromo benzene in benzene as (a) its mole fraction, and (b) grams of 1,4-dibromo benzene in 1000 grams of benzene.
At 90°C, the vapor pressure of pure 1,2-dimethylbenzene (orthoxylene) is 20 kPa and that of pure 1,3-dimethylbenzene (methaxylene) is 18 kPa. What is the composition of the liquid phase that boils at 90°C whose total vapor pressure is 19 kPa? What is the composition of the vapor phase in equilibrium with the solution?
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