Reversible Reactions: Extent of Reaction and Theoretical Yield

• Igor Novak ^[1]
  1. [1] Charles Sturt University

     Charles Sturt University

     Australia

     
• Localización: Journal of chemical education, ISSN 0021-9584, Vol. 97, Nº 2, 2020, págs. 443-447
• Idioma: inglés
• Texto completo no disponible (Saber más ...)
• Resumen

  • Theoretical yield and extent of reaction (degree of completion) are important concepts in stoichiometry and in chemical kinetics. We provide expressions describing theoretical yield (Y) and maximum extent of reaction (fractional yield, fmax) for five examples of commonly encountered reversible chemical reactions: A ⇌ B; A + B ⇌ C + D; A + B + C ⇌ D + E + F; A ⇌ B + C; and A + B ⇌ C. We discuss how the equilibrium constant and initial reactant concentration influence the maximum fractional yield (degree of reaction completion) and Y and illustrate their effects on specific examples of reversible reactions: conformer equilibria, esterification reaction, and ionization of weak acids.