Questions and Answers
Chemical kinetics is the study of the ______ of chemical reactions
rate
In chemical kinetics, the ______ of a reaction refers to the speed at which the reaction occurs
rate
Factors that can affect the ______ of a chemical reaction include temperature, concentration, and catalysts
rate
Study Notes
Chemical Kinetics
- Chemical kinetics is the study of the rates of chemical reactions, the factors that affect reaction rates, and the mechanisms of chemical reactions.
Factors Affecting Reaction Rate
- Concentration: increasing the concentration of reactants increases the reaction rate
- Surface Area: increasing the surface area of reactants increases the reaction rate
- Temperature: increasing the temperature increases the reaction rate
- Catalyst: adding a catalyst increases the reaction rate
- Light: certain reactions are affected by light
Rate of Reaction
- The rate of reaction is the change in concentration of reactants or products per unit time
- It can be expressed in terms of the decrease in concentration of reactants or the increase in concentration of products
- The rate of reaction can be measured experimentally using various methods
Rate Expression
- A rate expression is a mathematical representation of the rate of reaction
- It is expressed in terms of the concentrations of reactants and the rate constant
- The rate constant is a proportionality constant that depends on the specific reaction and the temperature
Molecularity of a Reaction
- Molecularity refers to the number of molecules of reactants involved in a single collision
- A unimolecular reaction involves one molecule, a bimolecular reaction involves two molecules, and a termolecular reaction involves three molecules
- The molecularity of a reaction determines the rate of reaction
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