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At certain temperature 50% of HI is diss...

At certain temperature `50%` of `HI` is dissociated into `H_(2)` and `I_(2)` the equilibrium constant is

A

1

B

3

C

0.5

D

0.25

Text Solution

Verified by Experts

The correct Answer is:
D
`{:(,2HI,rarr,H_(2),+,I_(2)),("Initial moles",1,,-,,-),("Eq. moles",1-0.5,,0.25,,0.25):}`
`K=(0.25xx0.25)/((0.5)^(2))`
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DINESH PUBLICATION-PHYSICAL AND CHEMICAL EQUILIBRIA-REVISION QUESTION FROM COMPETITIVE EXAMS
  1. For which of the following reaction K(p)=K(c) ?

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

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

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  4. 1.1 mole of A mixed with 2.2 mole of B and the mixture is kept in a 1 ...

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

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

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  7. The law of mass action was proposed by

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

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  9. The standard state Gibbs's energy change for the isomerisation reactio...

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  10. The equilibrium constant (K(p)) for the reaction, PCl(5(g))hArrPCl(3(g...

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  11. In a reaction A+2B hArr 2C, 2.0 moles of 'A' 3 moles of 'B' and 2.0 m...

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  12. In a reversible reaction, two substances are in equilibrium. If the co...

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  13. The concentration of reactants is increased by x, then equilibrium con...

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  14. In which case K(p) is less than K(c) ?

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  15. The reaction 3Fe(s)+4H(2)O hArr Fe(3)O(4)(s) +4H(2)(g) is reversible...

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  16. In a reaction A+B hArr C+D , the initial concentrations of A and B wer...

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  17. At a given temperature, the equilibrium constant for the reactions NO(...

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  18. The yield of NH(3) in the reaction N(2)+3H(2) hArr 2NH(3) , Delta H =-...

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  19. For the reaction PCl(5)(g) hArr PCl(3)(g)+Cl(2)(g) the forward reactio...

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  20. If the equilibrium constant for the reaction 2AB hArr A(2)+B(2) is 49,...

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