electivity data for a process to produce acetic anhydride from acetone and acetic acid are given in the 1958 AIChE Student Contest Problem.* The data are given in Table 4.3-2. The reactions of interest are Acetone - Ketene + CH 700C, 1 atm Ketene CO + }CH, 700C, 1 atm Ketene + Acetic Acid - Acetic Anhydride 80C, 1 atm mol ketene at reactor exit/mol acetone and the selectivity is defined as S converted. Develop a correlation for the data. Compare your results to the simple correlation S=1-x. Use your results to estimate the conversion corresponding to the maximum yield. smilslil toubong dene TABLE 4.3-2 Selectivity data for acetic anhydride process 0.88 0.75 0.62 0.49 0.38 0.28 0.19 0.13 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.1 From the 1958 AICHE Student Contest Problem.