Enthalpy of soluti on measureme nt s of four potassium salts in H20 were made in either an adiabatic or an iso pe ribol cal orimeter or both . The following summari zes the measured and recomme nd ed values: The value for KIO. has bee n corrected for the hydrol ys is of the pe ri odate ion. The .:lC " = -(82. 5 ± 4.3)J · mol -I ·K-1 for the unh ydrolysed reaction. For the reaction of KBr in H20 , .:l C " was measured as -(1 66.6 ± 7.2) ]-,nol -I·K -I in the temperature range 298 K to 3 19 K.Measure ments with the iso peribol calorimeter are also re ported for the e ndothermic reacti on of tri s(h ydrox ymeth yl)aminomethane, SRM 724a, in aqueous NaOH (0.05 mol·L -I).Compari sons of measurement s by different calorim eters on the same samples revea l unid e ntified calorimetri c eITors for e ndothermi c reactions which are greater than the imprec ision of the measurements.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.