Kc at 457 K is 4.88 × 10⁵.
The ratio of the equilibrium concentrations of the products over the equilibrium concentrations of the reactants, each raised to the power of their respective stoichiometric coefficients, is known as the equilibrium constant, or Kc.
Kp = Kc(RT)∧Δn
Kp = 1.3 ˣ 10⁴
Δn = -1
Kc = 4.88 × 10⁵.
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