Journal of Chemical Thermodynamics, Vol.27, No.3, 293-297, 1995
The Standard Molar Enthalpies of Formation of CeI3(S) and Lai3(S)
The standard molar enthalpies of solution of CeI3(s) in 0.250 mol.dm(-3) HCl(aq) and LaI3(s) in 1.006 mol.dm(-3) HCl(aq) have been measured. From these values the standard molar enthalpies of formation have been derived : Delta(f)H(m)(degrees)(CeI3,s,298.15 K) = -(669.3+/-0.g)kJ.mol(-1)and Delta(f)H(m)(degrees)(LaI3,s,298.15 K)= -(668.9+/-1.2) kJ.mol(-1).