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Enthalpy changes (ΔH in J g−1) associated with phase transitions in n-alkanes (paraffins), as a function of chain length, n. Circles (● for even n; ● for odd n) represent the enthalpies of fusion, ΔfusH, and crosses (+ for even n; + for odd n) represent the total enthalpy changes of fusion plus that from solid–solid transition(s), if present, ΔtotH. For even n ≤ 20, ΔfusH = ΔtotH. See Supplementary Information for data and data sources.
