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the equiliberium constant K for the reac...

the equiliberium constant K for the reaction `2HI (g) ⇌ H_2 (g) + I_2 (g)` at room temperature 300 K is 2.85 and at 698 K is`1.84 xx 10^(-2)` . Hence the reason that HI existsas a stable compound at room temperature is because :

A

It decomposes so slowly that equilibrium is not readily achived

B

The HI bond has a large covalent contribution

C

The heat of reavtionat room temperature is `-5.31 kcal`

D

It is uncatalytic reaction

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The correct Answer is:
C
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MBD PUBLICATION-EQUILIBRIUM-QUESTION BANK
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  2. The unit of equilibrium constant for the reaction , H2+I2 hArr 2HI IS ...

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  3. the equiliberium constant K for the reaction 2HI (g) ⇌ H2 (g) + I2 (g)...

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  4. The equilibrium constant foa a reaction is 1 xx 10^(20) at 300 K.Find ...

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  5. A(g) + B(g) ⇌ AB(g) is areversible reaction. At equilibrium 0.4 mole o...

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  6. 8 mole of a gas AB3 are introduced into a 1.0 dm^3 vessel. It dissocia...

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  7. At a certain temperature , 2HI ⇌ H2 + I2 on 50 % HI is dissolved at e...

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  8. Equilibrium concentration of HI, I2 and H2 are 0.7, 0.1 and 0.1 M resp...

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  9. An equilibrium mixture of the reaction 2NO(g) +O2(g) hArr 2NO2(g) cont...

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