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Consider the reaction for the decomposition of hydrogen disulfide: 2H2S(g)⇌2H2(g)+S2(g), Kc = 1.67×10−7 at 800∘C A...

Consider the reaction for the decomposition of hydrogen disulfide: 2H2S(g)⇌2H2(g)+S2(g),
Kc = 1.67×10−7 at 800∘C
A 0.500 L reaction vessel initially contains 0.100 mol of H2S and 0.138 mol of  H2 at 800∘C.​

Find the equilibrium concentration of  [S2].

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