chemical thermodynamics of neptunium and plutonium - U.S. ...

54 4. Selected plutonium dataa particular deprotonation equilibrium (cf. Table 5.2) may be known more accuratelythan the Gibbs energy formation of the ligand.The selected thermal functions of the heat capacities, listed in Table 4.3, refer tothe relationC ◦ p,m (T ) = a + b × T + c × T 2 + d × T −1 + e × T −2 (4.1)No references are given in these tables since the selected data are generally not directlyattributable to a specific published source. A detailed discussion of the selectionprocedure is presented in Part IV.A warning: The addition of any aqueous species and its data to this internallyconsistent data base can result in a modified data set which is no longer rigorous andcan lead to erroneous results. The situation is similar, to a lesser degree, with theaddition of gases and solids.It should also be noted that the data set presented in this chapter may not be “complete”for all conceivable systems and conditions. Gaps are pointed out in the varioussections of Part IV.