CHEM 1332 Lecture 13: CHEM 1332 Lecture : CHEM 1332 Lecture : Chapter 13 Lectuer Slides-Firooznia-v2
Document Summary
Reaction rate is the change in the molar concentration of a reactant (decrease) or a product (increase) with time (m/s). D[a] = change in concentration of a over time period dt. D[b] = change in concentration of b over time period dt. Because [a] decreases with time, d[a] is negative. Factors that affect reaction rates: concentration of reactants, presence of a catalyst, a substance that increases the rate of reaction without being comsumed in the overall reaction, temperature, surface area of solid reactants or catalyst. 2br- (aq) + 2h+ (aq) + co2 (g) slope of tangent slope of tangent slope of tangent average rate = . [br2]final [br2]initial tfinal - tinitial instantaneous rate = rate for specific instance in time. Rate law and rate constant rate a [br2] rate = k [br2] rate law k = rate. Two moles of a disappear for each mole of b that is formed. rate =
