11.6. Saturated liquid carbon dioxide at a temperature of 293 K and a pressure of 5.72 x 106 Pa experiences throttling to a pressure of 1.01 x 105 Pa. The temperature of the resulting mixture of solid and vapor is 195 K. What fraction is vaporized? (The enthalpy of saturated liquid at the initial state is 24,200 J/mol, and the enthalpy of saturated solid at the final state is 6750 J/mol. The heat of sublimation at the final state is 25,100 J/mol.)