Etiket Arşivleri: Chemical Kinetics

Chemical Kinetics

Chemical Kinetics

Reaction Rate Defined

Expressing reaction rates

Calculating reaction rate

Determine Reaction Rates

Differential Rate Laws

Variation of Reaction rates and Order

Differential Rate Law determination

Differential Rate Law determination –  continue

Integrated Rate Laws
concentrations as functions of time

Concentration and time of 1st order reaction

Half life & k of First Order Decomposition

1st order reaction calculation

Typical Problem wrt 1st Order Reaction

A 2nd Order Example

A 2nd Order Example

Half life of 2nd Order Chemical Kinetics

Plot of [B] vs. t & 1/[B] vs. t for 2nd Order Reactions

Chemical Reaction and Molecular Collision

Energy in chemical reactions

The Arrhenius Equation

Application of Arrhenius Equation

Application of Arrhenius Equation (continue)

The Effect of Temperature on Reaction Rates

Elementary Reactions and Mechanism

Molecularity of Elementary Reactions

Molecularity of elementary reactions – Example

Elementary Reactions are Molecular Events

Rate Laws and Mechanisms

Rate-determining Step in a Mechanism

Deriving a Rate Law From a Mechanism – 0

Deriving a rate law from a mechanism – 1

Deriving a rate law from a mechanism – 2

Deriving a rate law from a mechanism – 3

Deriving rate laws from mechanisms – steady-state approximation

Steady-state approximation – 2

Steady-state approximation – 3

Steady-state approximation – 4


Catalyzed decomposition of ozone

Homogenous vs. heterogeneous catalysts

Heterogeneous catalysts

Enzymes – selective catalysts

Chemical Kinetics – Summary


Laboratory‎ > ‎Chemical Kinetics

The detailed explanation at the molecular level how a reaction proceeds is called reaction mechanism. The explanation is given in some elementary steps. Devising reaction mechanisms requires a broad understanding of properties of reactants and products, and this is a skill for matured chemists. However, first year chemistry students are often given a mechanism, and be asked to derive the rate law from the proposed mechanism. The steady-state approximations is a technique for deriving a rate law from the proposed mechanism.