Module 2: Thermodynamics of Combustion
  Lecture 8: Stoichiometry
 
Stoichiometry
 
Stoichiometry:

The elemental mass balance in a chemical reaction, describing exactly how much oxidizer has to be supplied for complete combustion of certain amount of fuel.

 

 
Example:

 

 

Mass is conserved

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(Figure 8.1)
Lean Mixture:

 

Quantity of oxidizer > Stoichiometric quantity
Rich Mixture:  
Quantity of oxidizer < Stoichiometric quantity