Practice question
Question
For 2NO₂(g) <=> N₂O₄(g) , if Kp = 4.0 at 350 K ( R = 0.0831 bar L/mol K ), what is Kc ?
Explanation
Kp = Kc (RT)Δ n , Δ n = 1 - 2 = -1 , RT = 0.0831 × 350 ≈ 29.085 . Thus, Kc = Kp × RT = 4.0 × 29.085 ≈ 116.34 .
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