Ratcliffe and Chao [Canadian Journal of Chemical Engineering 47 (1969): 148] obtained the following tabulated results for the variation of the total pressure above a solution of isopropanol (P^*₁= 1008 Torr) and n-decane (P^*₂= 48.3 Torr) as a function of the mole fraction of the n-decane in the solution and vapor phases. Using these data, calculate the activity coefficients for both components using a Raoult€™s law standard state. 

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P (Torr) 942.6 0.1312 0.0243 909.6 0.2040 0.0300 0.2714 83.3 0.0342 0.3360 868.4 0.0362 830.2 0.4425 0.0411 786.8 0.5578 0.0451 758.7 0.6036 0.0489