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Activation energy

AP Chemistry Zumdahl 7E Chapter 12 Notes

Subject: 
Chemistry
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Chemical kinetics
Order of reaction
Reaction rate
Rate equation
Molecularity
Rate-determining step
Chemical reaction
Reaction mechanism
Catalysis
Activation energy
Conversion
Yield

1 Chapter 12 - Chemical Kinetics 12.1 Reaction Rates A. Chemical kinetics 1. Study of the speed with which reactants are converted to products B. Reaction Rate 1. The change in concentration of a reactant or product per unit of time [ ] t A tt ttimeatAofionconcentratttimeatAofionconcentratRate D D=- -= 12 12 a. Rates decrease with time b. It is customary to express reaction rates as positive values c. Instantaneous rate can be determined by finding the slope of a line tangent to a point representing a particular time C. Decomposition of NO2 2NO2(g) ? 2NO(g) + O2(g) Rate of consumption of NO2 = rate of production of NO = 2(rate of production of O2) [ ]t NO D D- 2 = [ ] t NO D D = [ ] ? ?

Chemical Kinetics: Rates of Reaction review sheet

Subject: 
Chemistry
Rating: 
0
No votes yet
Tags: 
Physical chemistry
Chemical kinetics
Chemistry
Reaction rate
Catalysis
Rate equation
Activation energy
Reaction mechanism
Order of reaction
Rate-determining step
Arrhenius equation
Collision theory
Rates of reaction

South Pasadena ? AP Chemistry [Keep for Reference] 15 ? Chemical Kinetics: Rates of Reaction DRAFT-- A B L U F F E R ? S G U I D E ? ? How to talk about Reaction Rate rate = ([chemical]/(time Common Units: M/s, mol?L-1?s-1 rate of disappearance of reactant or rate of appearance of product use coefficients to change one rate to another Reaction: 2A + 3B ( 4C = = watch your signs (([React.] = -([Prod.]) From a graph of [R] vs time Average rate is the slope of a segment. Instantaneous rate is slope of the tangent. Initial rate is often used.? ? How to Speed Up a Reaction [Use Collision Theory, Kinetic Molecular Theory] increase the concentration of reactants - increase molarity of solutions - increase partial pressure of gases
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