a) What is relative volatility? What happens when the relative volatility is 1) equal to "one" ii) greater than "one" 20 to one b) Explain constant temperature vapour-liquid equilibria, and bubble point & dew point curves. c) What is positive deviation from ideality?

a) What is relative volatility? What happens when the relative volatility is 1) equal to "one" ii) greater than "one" 20 to one b) Explain constant temperature vapour-liquid equilibria, and bubble point & dew point curves. c) What is positive deviation from ideality?

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter17: Spontaneity, Entropy, And Free Energy

Section: Chapter Questions

Problem 128IP: Some nonelectrolyte solute (molar mass = 142 g/mol) was dissolved in 150. mL of a solvent (density =...

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Some nonelectrolyte solute (molar mass = 142 g/mol) was dissolved in 150. mL of a solvent (density = 0.879 g/cm3). The elevated boiling point of the solution was 355.4 K. What mass of solute was dissolved in the solvent? For the solvent, the enthalpy of vaporization is 33.90 kJ/mol, the entropy of vaporization is 95.95 J/K mol, and the boiling-point elevation constant is 2.5 K kg/mol.
Refer to Fig. 4A.8. Describe the phase or phases present as the pressure on a sample of CO2 is steadily increased from 0.1 atm: (a) at a constant temperature of 200 K; (b) at a constant temperature of 310 K; (c) at a constant temperature of 216.8 K.
Refer to Fig. 4A.8. Describe the phase or phases present as a sample of CO2 is heated steadily from 100 K: (a) at a constant pressure of 1 atm; (b) at a constant pressure of 70 atm.
Refer to Fig. 4A.8. Which phase or phases would you expect to be present for a sample of CO2 at: (i) 200 K and 2.5 atm; (ii) 300 K and 4 atm; (iii) 310 K and 50 atm?
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At –10.5 °C, a common temperature for household freezers, what is the maximum mass of aspartame (C14H18N2O5) you can add to 3.00 kg of pure water and still have the solution freeze? Assume that aspartame is a molecular solid and does not ionize when it dissolves in water. Consult the table of KĘ values. mass of aspartame: g
Example 7: (in tutorial booklet in Moodle) Find the vapour and liquid phase composition for an air(1)/water(2) system in equilibrium at 25°C and atmospheric pressure. Vapour pressure of water at 25°C is 3.17 kPa.