Non-Linear pH Shifts and Reaction Kinetics in Buffers System: The Impact of Temperature Variations
Shiv Prakash Mishra *
Department of Chemistry, Shia P.G. College (University of Lucknow), Lucknow-226020, (U.P.), India.
R. P. Singh
Department of Chemistry, K.N.I.P.S.S., Sultanpur-228118, (U.P.), India.
*Author to whom correspondence should be addressed.
Abstract
The study reveals how many kinetic reactions are influenced by pH with temperature variations. The temperature effect on buffer solutions is not always remains constant, and, reveals how pH properties change in a way that is not directly proportional to temperature variations. This contrasts with changes in a linearity where a change in temperature results in a expectable proportional change in the pH of buffer solutions. In kinetics, this is due to the temperature dependent nature of equilibrium constant of reaction rates, leading to non-linear pH shifts. A temperature versus rate of reaction (kinetics) graph is reveals how rates of reaction change with varying in pH value. It often shows an optimal pH where the reaction activity is at its peak, with reactivity decreasing on either side of this optimum as pH deviates. The shape of the curve can vary depending on the specific reactions.
Keywords: Reaction kinetics, non-linear pH shifts, buffer solutions, temperature variations