Material Balance With Chemical Reaction


For the chemical reaction: aA + bB → cC + dD

a,b,c,d are the Stoichiometric Coefficients, representing the molar balance of the equation. a moles of A react with b moles of B to form c moles of C and d moles of D. The stoichiometric coefficients can refer to g-moles, lb-moles, kmols, etc., but NOT g, lbm, kg or any units of mass.

So, the reaction equation DOES show:

• The reactants and products

• The molar ratios of species involved in the reaction

It DOES NOT show:

• How fast the reaction goes (Kinetics)

• How far the reaction goes (Thermodynamics, Kinetics)

• The reaction mechanism (Chemistry)

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