An equilibrium mixture of the reaction `2H_(2)S(g)hArr2H_(2)(g) + S_(2)(g)` had `0.5` mole `H_(2)S`, `0.10` mole `H_(2)` and `0.4` mole `S_(2)` in one litre vessel. The value of equilibrium constants (K) in mole `litre^(-1)` is
A
`0.0004`
B
`0.008`
C
`0.016`
D
`0.160`
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c
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