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Standard XII

Chemistry

Characteristics of Equilibrium Constant

The equilibri...

Question

The equilibrium constants for the reactions $X ⇋ 2 Y$ and $Z ⇋ P + Q$ are $K_{1}$ and $K_{2}$ , respectively. If the initial concentrations and the degree of dissociation of X and Z are the same, the ratio $K_{1} / K_{2}$ is.

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Solution

The correct option is A 4
Given that
$X ⇌ 2 Y$
$C (1 - α)$ $2 C α$

Now,
$K_{1} = \frac{[Y]^{2}}{[X]} = \frac{4 C^{2} α^{2}}{C (1 - α)}$ ---- 1

$Z ⇌ P + Q$
$C (1 - α)$ $C α$ $C α$

Now,
$K_{2} = \frac{[P] \times [Q]}{[Z]} = \frac{C^{2} α^{2}}{C (1 - α)}$ --- 2

From 1 and 2 equation we get,

$\frac{K_{1}}{K_{2}} = 4$

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Similar questions

The equilibrium constants for the reactions X = 2Y and Z = P + Q are $K_{1} a n d K_{2}$ , respectively. If the initial concentrations and the degree of dissociation of X and Z are the same, the ratio $\frac{K_{1}}{K_{2}}$ is.

Q. The equilibrium constants

K_{p_{1}}

and

K_{p_{2}}

for the reactions,

X ⇌ 2 Y

and

Z ⇌ P + Q

, respectively are in the ratio of

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Q. If the dissociation constants of two substances are

K_{1}

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respectively, then the ratio of degree of dissociation for a given concentration, is given by

Q. The equilibrium constants

K_{p 1}

and

K_{p 2}

for the reactions

X ⇌ 2 Y

and

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, respectively are in the ratio of

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. If degree of dissociation of

X

and

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Q. For a reversible reaction

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the initial molar concentration of

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and

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M respectively. If

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The equilibrium constants for the reactions X⇋2Y and Z⇋P+Q are K1 and K2, respectively. If the initial concentrations and the degree of dissociation of X and Z are the same, the ratio K1/K2 is.

The correct option is A 4Given that X⇌2Y C(1−α) 2CαNow,K1=[Y]2[X]=4C2α2C(1−α) ---- 1 Z⇌P + QC(1−α) Cα CαNow,K2=[P]×[Q][Z]=C2α2C(1−α) --- 2From 1 and 2 equation we get,K1K2=4

The equilibrium constants for the reactions $X ⇋ 2 Y$ and $Z ⇋ P + Q$ are $K_{1}$ and $K_{2}$ , respectively. If the initial concentrations and the degree of dissociation of X and Z are the same, the ratio $K_{1} / K_{2}$ is.