Related Experiment Video
Updated: Oct 19, 2025

Combining Solid-state and Solution-based Techniques: Synthesis and Reactivity of ChalcogenidoplumbatesII or IV
Published on: December 29, 2016
The Enthalpy of Solution of SRM 1655 (KCl) in H2O
1National Bureau of Standards, Washington, D.C. 20234.
Abstract:
The value for the enthalpy of solution of SRM 1655 (KCl), ΔH°(500 H2O, 298.15 K) = (235.86±0.23)J·g-1 or (17.584±0.017)kJ·mol-1, was obtained from measurements in an adiabatic calorimeter, and confirmed by measurements in an isoperibol calorimeter. Enthalpy of solution measurements are reported in the temperature range 296 K to 358 K, at molalities between 0.005 and 0.18 mol-kg-1, for various ranges of particle size up to 1000 μm, and in CO2- saturated solutions. Observations were also made relative to the hygroscopicity, removal of occluded H2O, and homogeneity of SRM 1655. Between 296 K and 303 K, ΔC =-(2.076±0.087) J·g-1·K-1or -(154.8±6.4) J·mol-1·K-1 for the reaction of SRM 1655 in 500 H2O.
More Related Videos
08:16Ice Generation and the Heat and Mass Transfer Phenomena of Introducing Water to a Cold Bath of Brine
Published on: March 13, 2017
11:04Synthesis of Ionic Liquid Based Electrolytes, Assembly of Li-ion Batteries, and Measurements of Performance at High Temperature
Published on: December 20, 2016
Related Concept Videos
Aqueous Solutions and Heats of Hydration
When ionic compounds dissolve in water, the ions in the solid separate and disperse uniformly throughout the solution because water molecules surround and solvate the ions, reducing the strong electrostatic forces between them. This process...
Enthalpy of Solution
Solubility Equilibria
The...
Ionic Strength: Effects on Chemical Equilibria
In this solution, the primary...
Constant Pressure Calorimetry
Solubility Equilibria: Ionic Product of Water
The ionic product of water varies with temperature, and its value is 1.0 x 10−14 at standard experimental conditions. Per Le...