Equilibrium

  • Write the equation for $K_{eq}$ in terms of temperature.
  • Is $K_{eq}$ a function of $T$, $P$, or both?
  • In the $K_{eq}$ equation, is the Gibbs energy at the reference temperature or the system temperature? What about pressure?
  • If the equilibrium constant $K_{eq}$ is not a function of pressure, can the composition still depend on pressure?
  • Write the relation between $K_{eq}$ and the species partial pressures.
  • Define partial pressure of a species in terms of mole fraction.
  • For a reaction $aA + bB \leftrightarrow cC$, write the moles of each species in terms of some extent of reaction $\xi$.
  • Outline all the steps for computation of the equilibrium composition for the reaction in the previous question.
  • How many equations and unknowns would you have if there were two reactions?
    • Outline the solution in that case.