CHM 2045 Lecture Notes - Lecture 27: Reaction Rate Constant, Rate Equation, Stoichiometry

• School: University of Florida
• Department: Chemistry
• Course: CHM 2045
• Professor: Korolev Maria

Document Summary

Instantaneous rate = rate for specific instance in time rate [a] rate = k[a: k = rate/[a] Rate constant k contains all info: orientation/frequency of collisions, temperature, activation energy, pressure(increases over time) 2 moles of a are used up for every mole of b that is formed. Expresses the relationship of the initial instantaneous rate of a reaction to the rate constant and the concentrations of the reactants raised to the same powers. Aa + bb cc + dd rate = k[a]x[b]y reaction order over all is (x + y) Order of a reactant cannot defined only by stoichiometry. Determine the rate law and calculate the rate constant for the following reaction from the following data: s2o8. Double [i-], rate doubles (experiment 1 and 2). 2-], rate doubles (experiment 2 and 3). rate = k[s2o8. 2-]x[i-]y x = 1 y = 1 rate = k[s2o8.