CORRECTION The article, “Predicting the Parameters in the Wilson Equations for Activity Coefficients in Binary Hydrocarbon Systems,” by F. A. Gothard, M. F. Codrea Ciobanu, D. G. Breban, C. I. Bucur, and G. V. Sorescu [Znd. Eng. Chem. Process Des. Deu., 15,333-337 (1976)] has the following errors. 1. Equation 3 on p 333 should read: u t s= v ~ ~(0.29056 ( ~ ) - 0.08775w,)(1-T~~)X’
2. In Table 111 on p 336 the mean deviations are as follows: Predjcting method used Mean deviations
156
Eq 8 , l O
Ind. Eng. Chem., Process Des. Dev., Vol. 16, No. 1, 1977
2.89
A.P.T. 2.45
ChaoSeader 4.71
GraysonStreed 2.66
