# Problem: Use the following equilibria.SnO2 (s) + 2 CO (g) &lt;==&gt; Sn (s) + 2CO2(g)   Kc = 1.4 x1010CO (g) + H2O (g) &lt;==&gt; CO2 (g) + H2 (g)   Kc = 9.0 x 1012to calculate the Kc of this reactionSnO2 (s) + 2 H2 (g) &lt;==&gt; Sn (s) + 2 H2O (g)  Kc= ?A. 1.40 x 1010B. 1.50 x 10-3C. 1.13 x 1036D. 1.73 x 10-16E. 7.78 x 10-4

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###### Problem Details

Use the following equilibria.

SnO2 (s) + 2 CO (g) <==> Sn (s) + 2CO2(g)   Kc = 1.4 x1010
CO (g) + H2O (g) <==> CO2 (g) + H(g)   Kc = 9.0 x 1012

to calculate the Kc of this reaction

SnO2 (s) + 2 H(g) <==> Sn (s) + 2 H2O (g)  Kc= ?

A. 1.40 x 1010
B. 1.50 x 10-3
C. 1.13 x 1036
D. 1.73 x 10-16
E. 7.78 x 10-4

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