Pre Exponential Factor
A is the pre-exponential factorArrhenius originally considered A to be a temperature-independent constant for each chemical reaction. Pre Algebra Order of Operations Factors Primes Fractions Long Arithmetic Decimals Exponents Radicals Ratios Proportions Percent Modulo Mean Median Mode Scientific Notation Arithmetics Algebra. Conversion Factor Table Conversion Factors Math Facts Addition Word Problem Worksheets Where k is the rate constant frequency of collisions resulting in a reaction. . T is the absolute temperature in Kelvin or degree Rankine. However more recent treatments include some temperature dependence - see Modified Arrhenius.