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Hydrogen sulfide dissociates according to the following equation: In a mixture of the three gases at...

Hydrogen sulfide dissociates according to the following equation:

In a mixture of the three gases at 25 oC, the concentrations (not at equilibrium) were      found to be [H2] = 0.0026 M, [S2] = 0.0013 M and [H2S] = 0.0077 M

a)    What is the value of the reaction quotient, Qc, of the mixture

b)   Given that Kc = 2.3 x 10-4 at 25 oC is the system at equilibrium?

c)    If not, will the reaction proceed in the forward direction or will the reaction proceed     in the reverse direction as equilibrium is achieved?

d)    What is the value of Kp at 25 oC for this reaction? (Giver R = 0.0821 L atm/ K mol)

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Answer #1

Page : ANSWER kan From the vant hoff reaction of Agro RT in terms of activity If we stale activity concentration then eduatioPage: 3 AN kp? Иe X Ceo RT Po Coa Standard concentration alim То 2 Poz Standard pressure al atm universal gas constanta 0.082Page : 2 ANSWER H₂S dissociates like this H₂S H₂ Ž SL 1/2 : Se [H2 ] [52] [H25] 1/2 0.0026 % (0.0013) 0.0077 0.0026 X 0.0360

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