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(a) Isothermal compressibility7,13,53. (b) Heat capacity at constant pressure CP (open circles: data from Archer and Carter10, closed circles: data from Angell et al.6) and at constant volume CV (calculated) at 0.1 MPa. See Supplementary Section 5 for more details. (c) Thermal expansivity11,12,54. In a, b, and c, the curves are the prediction of the crossover two-state model, and the symbols represent experimental data.
