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Standard XII

Chemistry

Characteristics of Chemical Equilibrium

In a 20 litre...

Question

In a 20 litre vessel, initially 1 mole each of $C O, H_{2} O, C O_{2}$ is present, then for the equilibirum of
$C O + H_{2} O ⇌ C O_{2} + H_{2}$ , which one among the following is true?

H_{2}

is more than 1 mole

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C O, H_{2} O, H_{2}

each are less then 1 mole

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C O_{2}, H_{2} O

both are more than 1 mole

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All of these

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Solution

The correct option is B $C O, H_{2} O, H_{2}$ each are less then 1 mole
$C O 1 + H_{2} O 1 ⇌ C O_{2} 1 + H_{2} 0$

$C O 1 - x + H_{2} O 1 - x ⇌ C O_{2} 1 + x + H_{2} x$

At equilibrium, the reaction won't go to completion. Hence $x < 1$

So, $C O$ , $H_{2} O$ and $H_{2}$ will be less than 1 mole.

Hence, option B is correct

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In a 20 litre vessel, initially 1 mole each of CO, H2O, CO2 is present, then for the equilibirum of CO+H2O⇌CO2+H2, which one among the following is true?

The correct option is B CO, H2O, H2 each are less then 1 moleCO1 +H2O1⇌CO21+ H20CO1−x +H2O1−x⇌CO21+x+ H2xAt equilibrium, the reaction won't go to completion. Hence x<1So, CO, H2O and H2 will be less than 1 mole.Hence, option B is correct

In a 20 litre vessel, initially 1 mole each of $C O, H_{2} O, C O_{2}$ is present, then for the equilibirum of
$C O + H_{2} O ⇌ C O_{2} + H_{2}$ , which one among the following is true?