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Nonadditive nearest-neighbor model provides a superior global fit to experimental data. Integrated enthalpic heats per injection (black circles) at different temperatures are globally fit using the additive model NN-a (blue, χ2 = 7.1) and nonadditive model NN-na (red, χ2 = 1.8). The resulting residuals from each fit are shown below each isotherm. To see this figure in color, go online.
