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For the reaction: SnO ₂( ~s )+2 H ₂( ~g ) 2 H ₂ O ( ~g )+ Sn ( ~s ) Calculate K _ P at 900 K , where the equilibrium steam-hydrogen mixture was 45 % H ₂ by volume.

Correct answer

1.5

Step-by-step solution

K _ P = ( P _ H ₂ O )^2 ( P _ H ₂ )^2 = (0.55)^2 (0.45)^2 =1.5

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