Temperature (°C) d) e) 110 100 90 80 70 60 50 0 0.2 0.4 0.6 0.8 Mole fraction A 1.0 a) ) What are the dew point temperature and the bubble point temperature for a mixture containing 0.8 mol A/mol and the balance of B? b) >What is the composition of the vapor phase for the same mixture if heated to 90°C? Specify units. c) temperature ) What is the normal boiling point of B? > Which component is more volatile, (A or B)? Explain briefly. , How would the boiling point temperatures of A and B change if the pressure was increased to 5 atm? Explain briefly.

Temperature (°C) d) e) 110 100 90 80 70 60 50 0 0.2 0.4 0.6 0.8 Mole fraction A 1.0 a) ) What are the dew point temperature and the bubble point temperature for a mixture containing 0.8 mol A/mol and the balance of B? b) >What is the composition of the vapor phase for the same mixture if heated to 90°C? Specify units. c) temperature ) What is the normal boiling point of B? > Which component is more volatile, (A or B)? Explain briefly. , How would the boiling point temperatures of A and B change if the pressure was increased to 5 atm? Explain briefly.

Chemistry: An Atoms First Approach

2nd Edition

ISBN:9781305079243

Author:Steven S. Zumdahl, Susan A. Zumdahl

Publisher:Steven S. Zumdahl, Susan A. Zumdahl

Chapter16: Spontaneity, Entropy, And Free Energy

Section: Chapter Questions

Problem 114CP: Carbon tetrachloride (CCl4) and benzene (C6H6) form ideal solutions. Consider an equimolar solution...

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Carbon tetrachloride (CCl4) and benzene (C6H6) form ideal solutions. Consider an equimolar solution of CCl4 and C6H6 at 25C. The vapor above the solution is collected and condensed. Using the following data, determine the composition in mole fraction of the condensed vapor. Substance Gfo C6H6(l) 124.50 kJ/mol C6H6(g) 129.66 kJ/mol CCI4(l) 65.21 kJ/mol CCI4,(g) 60.59 kJ/mol
The binary water-phenol diagram is given below, in molar fraction, under the total pressure Pt = 1 atm. 1) How many phases are there in the domain marked "I"? 2) From which temperature the mixture become miscible in all proportions? How do you call that temperature? 3) At a temperature T = 50 °C, in a controlled temperature container containing water. Phenol is then poured at the same temperature until the molar fraction of phenol in the mixture XC2H50H is equal to 0.05. Then, we continue to add the phenol gradually, at a constant temperature, to XC2H5OH of phenol in the mixture is XC2H5OH = 0.8. = 0.4. Then finally we stop adding phenol when the molar fraction a. How many phases are present at each one of the three mixture compositions in the container during the addition of the phenol? b. What is the composition of the phases when the fraction of phenol is XC2H5OH = 0.4? c. What is the proportions of the phases with respect to each other when XC2H5OH = 0.4? (Show your calculations)…
Part A Use Raoult's law to calculate vapour liquid equilibrium behaviour for a multicomponent mixture of hydrocarbons. n-pentene i-pentane 0.1 n-pentane cyclohexane Mole fraction in mixture 0.2 0.6 0.1 (a) Calculate the pressure for which the mixture boils at 40°C. (b) Calculate the boiling temperature at atmospheric pressure. (c) From part (b), calculate the composition of the vapour phase that fomms at the nomal boiling point of the mixture. 16 M. H. Khoshgoftar Manesh
7. Assume that the data in the table below stems from a liquid mixture that obeys Raoult's law. mole fraction p(MBenzene)/Torr p(Benzene)/Torr Total x(Methylbenzene pressure/Torr 0 0.30 0.45 0.61 0.84 1 0 7.19 (ii) 14.90 (iv) 25.02 80.00 (i) 43.57 (iii) 11.90 a) Estimate the missing values. b) Estimate the total pressure for each composition. c) Determine which component is more volatile
Quinine is a natural product extracted from the bark of the cinchona tree, which is native to South America. Quinine is used as an antimalarial agent. When 1.90 g of quinine is dissolved in 25.0 g of cyclohexane, the freezing point of the solution is lowered by 4.88 °C. Look up the freezing point and Kf constant for cyclohexane in the Colligative Constants table. Calculate the molar mass of quinine. molar mass: g/mol
Based on the ternary phase diagram, a binary mixture of furfural and water will always split into two liquid phases: 1) 95 % furfural, 5 % H2O and 2) 92 % H2O, 8 % furfural. Neither true nor false True False The actual composition depends on other experimental parameters.
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
3. Refer to the phase diagram depicted below: When 7 moles of A and 3 moles of B are mixed at 50oC which is then cooled to 10oC the sample turns into two liquid phases, phase I has mole fraction xB=0.14 (see diagram below). Find the phase II mole fraction xB, and then calculate the ratio of amount of substance in phase I to that in phase II using Lever rule. Please enter your answer as a number with two decimals. for example, if the ratio you calculated is 2:3, you enter as 0.67
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- 2022.pdf - Adobe Acrobat Pro DC (32-bit) ndow Help oter 14 - Soluti. x 2 / 3 100% 9) An aqueous solution has a normal boiling point of 103.0°C. What is the freezing point of this solution? For water Kb = 0.51°C/m and Kf=1.86°C/m. 9) A) -0.82°C B) -3.0°С С) -3.6°C D) -11°C 10) A solution of an 22.4 g of an unknown protein dissolved in enough water to make 0.150 L of solution has an osmotic pressure of 658 torr at 25°C. Based on these data, what is the molar mass of the protein? 10) search hp