Tyn and Calus Method 1975

In this method, Vb is related to the critical volume by

where both Vb and Vc are expressed in cubic centimeters per gram mole. Comparisons with the substances of Table 4-11 shows that this method is somewhat more accurate and has greater reliability since only 1 substance has an error of more than

4.34 CHAPTER FOUR

TABLE 4-10 Group/Atom Contributions for Schroeder (Eq. 4-10.1) and Le Bas Methods

Increment, cm3/mol

TABLE 4-10 Group/Atom Contributions for Schroeder (Eq. 4-10.1) and Le Bas Methods

+1 0

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