21. Two of the dimensions would be used to represent the composition mole fractions , and the third dimension would be the temperature. 22. The volume fraction is analogous to the mole fraction , but is weighted to take account of the relative sizes of the molecules. 23. For a small solute, the mole fractions would appear instead, and this modification is the innovation due to Flory and Huggins. 24. B are the partial vapour pressures of the two constituents and x A and x B are the mole fractions of the liquid. 25. The mole fraction of a gas component in a gas mixture is equal to the volumetric fraction of that component in a gas mixture. 26. To be more specific, the composition of each phase is determined by intensive variables ( such as mole fractions ) in each phase. 27. Hence, through the definition of partial pressure and using p T to represent the total pressure and x to represent the mole fraction ; 28. In the retrieval algorithm measurements from the three bands are combined to yield column-averaged dry-air mole fractions of carbon dioxide. 29. Again assuming ideal behavior, the activity of a solvent may be replaced by its mole fraction , or approximately by 1 in dilute solution. 30. X _ n is the group mole fraction , which is the number of groups n in the solution divided by the total number of groups.
