Compute all parts of given question:
Question: A gaseous mixture containing 0.170 mole fraction of carbon tetrachloride and 0.830 mol fraction of dry air is initially at 73 Celsius and 1163mm Hg.
Part I: If this mixture is cooled at constant pressure at what temperature does the ccl4 first start to condense?
Part II: At what temperature would 42% of the ccl4 condense?
Show how you get the answer, so that I can better understand how to do it.