Hill reaction definition

Norbert Berkowitz. I suggest that initial reaction data cannot justify the author s rather definite conclusions since a diffusion-controlled component of the overall reaction would be relatively slow compared with an initial surface reaction and therefore more or less completely masked by it. Moreover, if the oxidation reaction were carried out in a liquid medium, swelling and dispersion of the solid reactant would accompany it, and in a dry (gaseous) medium, oxidation is known to cause some eating out of pores, etc. In both cases, therefore, continuous changes in reactant geometry accompany the reaction, and the critique applying to Hill et al. applies to Kapo. 

Letort M. Definition and Determination of the Two Orders of a Chemical Reaction. Jourrud de Chimie Physique 1937 34 206 quoted from Benson S. The foundations of chemical kinetics. New York, NY McGraw-Hill 1960. p. 379, 380, 381, 383. 

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