In the reaction:        2A       ⇆                B       +      3C            For the reaction,   ΔH = -23 kcal/mol   and Keq =  26 X 10 -26   Is the reaction exothermic or endothermic?     Are products or reactants favored?     Using Le Chatelier’s Principle, what happens to the equilibrium if the concentration of C is increased?     Using Le Chatelier’s Principle, what happens to the equilibrium if the concentration of A is increased?

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Stoichiometry

Stoichiometry is a chemical division that evaluates the quantitative content of the chemical process with the help of the reacting molecules or products taking part in the reaction. The term “stoicheion” in “Stoichiometry”, is an old Greek term for "element" whereas “metron” means "measure".