A mixture of 0.06906 mol of CH4, 0.01224 mol of H2S, 0.08482 mol of CS2, and 0.01029 mol of H2 is placed in a 1.0-L steel pressure vessel at 1314 K. The following equilibrium is established: 1 CH4(g) + 2 H2S(g)  1 CS2(g) + 4 H2(g) At equilibrium 0.007138 mol of H2 is found in the reaction mixture. (a) Calculate the equilibrium partial pressures of CH4, H2S, CS2, and H2. Peq(CH4) =   Peq(H2S) =   Peq(CS2) =   Peq(H2) =   (b) Calculate KP for this reaction. KP =

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A mixture of 0.06906 mol of CH4, 0.01224 mol of H2S, 0.08482 mol of CS2, and 0.01029 mol of H2 is placed in a 1.0-L steel pressure vessel at 1314 K. The following equilibrium is established:

1 CH4(g) + 2 H2S(g)  1 CS2(g) + 4 H2(g)

At equilibrium 0.007138 mol of H2 is found in the reaction mixture.


(a) Calculate the equilibrium partial pressures of CH4, H2S, CS2, and H2.


Peq(CH4) =  

Peq(H2S) =  

Peq(CS2) =  

Peq(H2) =  


(b) Calculate KP for this reaction.

KP =  

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