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Calculate the % dissociation of H 2 S(g) ,if 0.1 mole of H 2 S is kept in 0.4 litre vessel at 1000K.For the reaction 2H 2 S = 2H 2 +S 2 , the value of k c is 1×10 −6

  • Calculate the % dissociation of H2S(g) ,if 0.1 mole of H2S is kept in 0.4 litre vessel at 1000K.For the reaction 2H2S = 2H2+S2 , the value of kis 1×10−6

Grade:11

1 Answers

Nilabh
35 Points
3 years ago
(0.1-x )    (  x )    (x/2)
2H2S  >
 
At equilibrium:-  (0.1-x)/V
Therefore ::::   Kc= {( x/V)^2(x/2V)} / (0.1-x/v)^2
    =>  1.0×10^-6 =( x^3) / 2V(0.1)^2
    =>   x^3 = 2×0.4×0.1×10^-6
    =>   x = 2×10 ^-3
   So % dissociation = (2×10^-3×100) / 0.1
                                   = 2%

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