10 Cacate he ocesses: (a) mixin oxygen, and (b) Changes in entropy for the following of 1 mole of nitrogen and 1 mole ing of 2 moles of argon, 1 mole ofo Colligative Properties um, and 3 moles of hydrogen. Both of helium 5.19 List the important assur ied out under conditions of constant t of Equation S.35 98 K) and constant pressure. Assume empera 5.20 Liquids A (bp=T%) a deal solution. Predict ther solutions formed by mixin havior t 25° C and 1 atm pressure, the absolute third es of methane and ethane are 186.19 -1 and 229.49 J K mol-, respectively, in ideally at 364°C. (a) Dev entropi law entropies 5.21 A mixture of ethanc mol-1 the gas phase. Calculate the absolute third-law entro of a ideal behavior fraction of n-propanol i propanol that boils at 3 is the total vapor press when the mole fraction late the composition o solution" containing l mole of each gas. A " containing 1 mole of each gas. Assume Chemical Potential h of the following has a higher chemical po- num vapor pressures 36.4° C are 108 mmH tential? If neither, answer "same." (a) H2C at water's normal melting point, (b) H20(s) at- (s) or H2O(U 5.22 Two beakers, l bar or H20(1) atー5°C and i bar, (c) benzene at urea and 50 mL of a tightly seal and1 bar or benzene in a 0.1 M toluene solution under in benzene at 25 C and 1 bar 5.13 A solution of ethanol and n-propanol behaves ide- ally. Calculate the chemical potential of ethanol in solu- tion relative to that of pure ethanol when its mole frac- tion is 0.40 at its boiling point (78.3°C) 5.14 Write the phase equilibrium conditions for a liquid solution of methanol and water in equilibrium with its vapor. mole fraction o Assume ideal beh note that at equili same in both solu 5.23 At 298 K 23.76 mmHg a Assuming that its concentratio electrolyte.) Henry's Law 5.15 Prove the statement that an alternative way to express Henry's law of gas solubility is to say that the volume of gas that dissolves in a fixed volume of solu- tion is independent of pressure at a given temperature 5.24 Trees in atures as low an aqueous remain unf able concer 5.16 A miner working 900 ft below the surface had a soft drink beverage during the lunch break. To his sur- prise, the drink seemed very flat (that is, not much effer- vescence was observed upon removing the cap). after lunch, he took the elevator up to the surface. Dur- spheric co spoilage 5.26 Pro Shortly and neg 5.27 benzoi the trin un he felt a great urge to belch. Explain.