Abstract
Abstract Self-diffusion of Co2+ ions in CoBr2 and CoI2 is reported in the concentration range of 10–5 to 0.25M in 1% agar gel at 25 °C. The deviations observed between the experimental and theoretical values of diffusion coefficients are explained by considering different types of interactions occurring in the ion-gel water system. The applicability of the transition state theory to the diffusion of ZnSO4 in agar gel medium is tested by varying the temperature as well as the gel concentration at high concentration of the electrolyte. The activation energy E and D 0 value decrease with increasing gel concentration in agreement with the theory.
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