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3.2 moles of hydrogemn iodide was heted ...

`3.2` moles of hydrogemn iodide was heted in a sealed bulb at `444^(@)C` till the equilibrium state was reached. Its degree of dissociation sat this temperature was found to be `22%`. The number of moles of hydrogen iodide present at equilibrium is

A

2.496

B

1.87

C

2

D

4

Text Solution

Verified by Experts

The correct Answer is:
A
`2HIhArrH_(2)+I_(2)`
It is 22% decomposed,
`:.(3.20xx22)/(100)=0.704`
(3.2-0.704) is equal to HI present at equilibrium which is =2.496
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DISHA PUBLICATION-EQUILIBRIUM-Exercise-2 : Concept Applicator
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  4. For the reaction is equilibrium : 2NOBr((g))hArr2NO((g))+Br(2(g)) ...

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  5. A gaseous compound of molecular mass 82.1 dissociates on heating to 40...

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  6. In the reaction AB(g) hArr A(g) + B(g) at 30^(@)C, k(p) for the dissoc...

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  7. Ammonium carbamate dissociates on heating as: NH(2)COONH(4)(g)hArr2N...

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  8. Consider the partial decomposition of A as 2A(g)hArr2B(g)+C(g) At ...

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  9. CuSO(4).5H(2)O(s)hArrCuSO(4). 3H(2)O(s)+2H(2)O(g), K(p)=4xx10^(-4)atm^...

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  10. For which of the following reactions at equilibrium at constant temper...

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  11. The following two reactions: i. PCl(5)(g) hArr PCl(3)(g)+Cl(2)(g) ...

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  12. The element Bi melts at 271^(@)C and has density of 9.73 g/mL as a sol...

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  13. At 25^(@)C, the dissociation constant of a base. BOH is 1.0xx10^(-12)...

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  14. Which of the following will decrease the pH of a 50 ml solution of 0.0...

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  15. K(1) & K(2) for oxalic acid are 6.5 xx 10^(-2) and 6.1 xx 10^(-5) resp...

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  16. The degree of dissociation of 0.1 M weak acid HA is 0.5%. If 2 mL of 1...

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  17. pH of two solutions : I. 50 mL of 0.2 MHCl + 50 mL of 0.2 MHA (K(a)=...

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  18. Which of the following, when mixed, will give a solution with pHgt7 ?

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