Pressure Equilibrium Constant K_p Expression
For a gas-phase reaction aA(g) + bB(g) ⇌ cC(g) + dD(g), K_p = ((p_C)^c (p_D)^d)/((p_A)^a (p_B)^b). p_X is the equilibrium partial pressure.
Syllabus path: Chemical Theories and Laws › Chemical Reaction Rates and Equilibrium
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CSCA Chemistry Formula Reference
Formula and explanation
For a gas-phase reaction aA(g) + bB(g) ⇌ cC(g) + dD(g), K_p = ((p_C)^c (p_D)^d)/((p_A)^a (p_B)^b). p_X is the equilibrium partial pressure. The relationship between K_p and K_c is K_p = K_c (RT)^(Δ n), where Δ n = (c + d) - (a + b).
Related tutorial and examples
Chemical Reaction Rates and Equilibrium
Chemical Reaction Rates and Equilibrium Core Concepts and Learning Objectives This section studies chemical reactions from a dynamic perspective. It involves not only the change of substances (Reaction Rate) but also the limit of the reaction (Chemical Equilibrium). Learning Obje…
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