Popis: |
A study of the pressure and temperature variation of the equilibrium constant or the molar volume of a system can be used to obtain an insight into the nature of the species present. A detailed description of two experiments (compressibility and optical measurements) is presented to illustrate the techniques and operating principles employed in the high-pressure study of metal-ammonia solutions. The results of (1) measurements of the isothermal compressibility of K- and KI-NH3 solutions, (2) an optical study of the reaction of solvated electrons with ammonia, (3) the absorption spectrum of dilute K- and KI-NH3 solutions, (4) electrical conductivity experiments, (5) reflectivity measurements, (6) experiments on the miscibility gap, and (7) studies of the reaction of the solvated electron in water-ammonia mixtures are used to discuss the nature of metal-ammonia solutions. |