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HI was heated in a sealed tube at 400^(@...

`HI` was heated in a sealed tube at `400^(@)C` till the equilibrium was reached. HI was found to be `22%` decomposed. The equilibrium constant for dissociation is

A

0.282

B

0.0796

C

0.0199

D

1.99

Text Solution

Verified by Experts

The correct Answer is:
C
`{:(2HI,hArr,H_(2),+,I_(2)),("Eq. conc." 2-(0.22xx2),,0.22,,0.22):}`
`K=((0.22xx0.22))/((1.56)^(2))=.0199`
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DINESH PUBLICATION-PHYSICAL AND CHEMICAL EQUILIBRIA-REVISION QUESTION FROM COMPETITIVE EXAMS
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  5. Consider the reaction CaCO(3)(s) hArr CaO(s) +CO(2)(g) in closed c...

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  6. At 1000 K, the value of K(p) for the reaction: A(g) + 2B(g)hArr3C(g) ...

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  7. For a reaction, H2+I2hArr 2HI at 721 K , the value of equilibrium cons...

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  8. In which of the following cases, the reaction goes farthest to complet...

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  9. In an exothermic reaction, a 10^(@) rise in temperature will

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  10. The equilibrium constant for a reacton N(2)(g)+O(2)(g)=2NO(g) is 4xx...

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  11. The factor which changes equilibrium constant of the reaction A(2)(g...

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  12. In which of the following reaction, the yield of the products does not...

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  13. For which of the following reaction K(p)=K(c) ?

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  14. In which of the following system, doubling the volume of the container...

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  15. At certain temperature 50% of HI is dissociated into H(2) and I(2) the...

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  16. 1.1 mole of A mixed with 2.2 mole of B and the mixture is kept in a 1 ...

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  17. In which of the following reaction K(p) gt K(c)

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  18. If the equilibrium constant of the reaction 2HI hArrH(2) + I(2) is 0.2...

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  19. The law of mass action was proposed by

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  20. The reaction 2SO(2)+2O(2)hArr 2SO(3) will be favoured by

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