A gas mixture consisting of hydrogen and carbon dioxide has a volume of 137.373 cm at 1.438 C and 0.924 atm. The mixture is cooled to – 200 C and the carbon dioxide solidifies. The hydrogen is removed from the vessel, and then the vessel is warmed to -5.007 C and 0.951 atm, and the volume of gas is 66.066 cm. Calculate the mole fraction of carbon dioxide in the original mixture.
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