CHEM 1133 Study Guide - Midterm Guide: Reaction Step, Collision Frequency, Rate Equation
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Faster at the beginning then slow as equilibrium is approached: average rate of the rxn is the change in concentrations divided by the change in time. Instantaneous rate of the rxn is the |slope| of the tangent line drawn at the time of interest. Instantaneous rate at t=0 is called the initial rate: the slope and rate decrease over time as equilibrium is approached. Chemistry 2 final exam review exam 1. Integrated rate laws - establish a relationship btwn the concentrations of the reactants and time: depends on the order of the reaction, does not include the rate. Linear plot: ln[a] vs. t ln[a]t = -kt + ln[a]0. Linear plot: 1[] vs. t (cid:2778)[(cid:2157)] = kt + (cid:2778)[(cid:2157)](cid:2777: half-life (t1/2): the time required for the reactant concentration to reach half of its initial value, the half-life is characteristic of a reaction at a given temperature.
