Chemical Kinetics Flashcards
What is reaction kinetics?
The study of rates of reaction and factors that influence rate
What is transition state?
Highest energy on the energy curve-transient state whereby molecules can return to reactants or proceed to form products
What is kinetic profile?
How the rate of a reaction varies as reaction proceeds
What does the steepness of gradient on a rate of reaction graph tell us?
How fast the reaction is progressing
What factors affect rate of reaction?
Temperature
Concentration
Chemical nature
State of subdivisions (surface area)
Presence of catalyst
What is the ate equation of elementary reactions?
Rate=K[A]a[B]b
What types of elementary reaction are there?
Unimolecular = A—>B
Biomolecular= A+B—>C
Termolecular= A+B+C—>D
What is order of a reaction?
The power to which the convent of reactants must be raised to give a rate equation that describes the experimental data
What is differential rate equations mean?
A rate equation where the rate of consumption of a reactant/ formation of a product is written as a differential
What is the rate equation for a reaction at a particular instant during the reaction?
-d[A]= K[A]
——
dt
What is experimental data?
Measurement of the concentration of a reactant or product at different times throughout the reaction
What is the integrated rate equation of experimental data?
-In[A]t=In[A]0-Kt
What is exponential decay?
The concentration of the reactants decays as a logarithmic expand with time
What is 1st order elementary reaction?
A—> products
What is 2nd order elementary reaction?
A+A—> products
