Chemistry / Equilibrium Expressions
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Solution: On analysis, an equilibrium mixture for the reaction. 2H2S(g...

Question

On analysis, an equilibrium mixture for the reaction. 

2H2S(g) ⇌ 2H2(g) + S2(g)

was found to contain 1.0 mol H2S, 4.0 mol H2, and 0.80 mol S2 in a 4.0 L vessel. Calculate the equilibrium constant for this reaction.

A. 1.6
B. 12.8
C. 0.64
D. 0.8
E. 3.2