Answer:
490
Explanation:
823°C = (823 + 273)K = 1096K
Kp = Kc (RT)∇ⁿ
∇ⁿ = change in mole in product - change in mole in reactant.
Equation of reaction;
Co(s) + CO2(g) ⟷ CoO(s) + CO(g)
∇ⁿ = 2 - 2 = 0
Kp = Kc * (RT)∇ⁿ
Kp = Kc when ∇ⁿ = 0
Since anything or number raised to power of 0 = 1
Kp = 490 = Kc
Kc = 490.