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Byju's Answer

Standard XII

Chemistry

Types of Equillibrium

Chemical equi...

Question

Chemical equilibrium is a condition:

where all species have same concentration

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where all species have constant concentration with respect to time

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where all species have concentration equal to one

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all of the above

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Solution

The correct option is B where all species have constant concentration with respect to time
A chemical system is said to be in equilibrium when the concentration of chemical entities i.e. reactants and products involved in a chemical reaction do not change or cannot change in time without the application of external influence. Thus, a system in chemical equilibrium is said to be in stable state.

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{N O}_{3}^{-} \to {N O}_{2}

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E^{o} = 0.79 V

and

{N O}_{3}^{-} \to {N H}_{2} O H

(Acidic medium).

E^{o} = 0.731 V

. At what pH the above two half reactions will have same

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The equilibrium constant at $298 K$ for a reaction
$A + B ⇌ C + D$ is $100$ . If the initial concentration of all the four species were $1 M$ each, then equilibrium concentration of $D (in mol/l)$ will be:

Q. Given the species

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and

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which of the following statements are true for this :
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(III) All the species have identical bond order
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Q. The equilibrium constant at

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for a reaction

A + B ⇌ C + D

100

. If the initial concentration of all the four species were

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