2. Given the equations : CO (g) 2 CO (aq) CO2 (g) 2 CO2 (aq) + 4.8 kcal I, The randomness increases in both dissolution. AH = -3.4 kcal %3D II. The dissolutions of both gases are exothermic. III. The tendency toward minimum energy supports the dissolution of both gases. IV. The solubility of CO (g) is larger than that of CO2 (g) under the some conditions. Which one (s) of the statements given above is (are) correct ? A) I and II B) I, II and IIIA C) II and IV D) II and III E) II, III and IV

2. Given the equations : CO (g) 2 CO (aq) CO2 (g) 2 CO2 (aq) + 4.8 kcal I, The randomness increases in both dissolution. AH = -3.4 kcal %3D II. The dissolutions of both gases are exothermic. III. The tendency toward minimum energy supports the dissolution of both gases. IV. The solubility of CO (g) is larger than that of CO2 (g) under the some conditions. Which one (s) of the statements given above is (are) correct ? A) I and II B) I, II and IIIA C) II and IV D) II and III E) II, III and IV

EBK A SMALL SCALE APPROACH TO ORGANIC L

4th Edition

ISBN:9781305446021

Author:Lampman

Publisher:Lampman

Chapter79: Solubility

Section: Chapter Questions

Problem 1P

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A solution is prepared by dissolving 40.00 g of NaCl (f.w. = 58.44 g mol–1), a non-volatile solute, in enough water (m.w. = 18.02 g mol–1) to result in exactly 1 L of solution at 25 °C. Assume the density of the solution is that of pure water (dsolution = 1.000 g mL–1). The ebullioscopic constant (Kb) for water is 0.513 °C m–1. The cryoscopic constant (Kf) for water is 1.86 °C m–1. The vapor pressure of pure water is 0.0313 atm. Find the vapor pressure of the solution to 3 decimal places in atm.