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Standard XII

Chemistry

Effective Equilibrium Constant

AT temperatur...

Question

AT temperature T, a compound $A B_{2} (g)$ dissociates according to the reaction,
$2 A B_{2 (g)} ⇌ 2 A B_{(g)} + B_{2 (g)}$ with a degree of dissociation, x (where x << 1). If KP and P are equilibrium constant and equilibrium pressure respectively, the value of x is

$(\frac{2 K p}{P})^{3}$

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$(\frac{2 K p}{P})^{2}$

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${[\frac{2 K p}{P}]}^{\frac{1}{3}}$

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$(\frac{2 K p}{P})^{\frac{1}{2}}$

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Solution

The correct option is C
${[\frac{2 K p}{P}]}^{\frac{1}{3}}$

$2 A B_{2} (g) 1 - x \leftrightarrow 2 A B x (g) + B_{2} \frac{x}{2}$
Total equilibrium moles $1 + \frac{x}{2}$

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Similar questions

Q. At temperature

T

, the compound

A B_{2} (g)

dissociates according to the reaction,

2 A B_{2} (g) ⇌ 2 A B (g) + B_{2} (g)

with a degree of dissociation,

x

. which is small compared with unity. Deduce the expression for

x

in terms of the equilibrium constant,

K_{p}

and the total pressure,

P

Q. At temperature

T

, a compound

A B_{2} (g)

dissociates according to the reaction,

2 A B_{2} (g) ⇌ 2 A B (g) + B_{2} (g)

With degree of dissociation

x

, which is small compared to unity. The expression for

x

in terms of the equilibrium constant

K_{p}

and total pressure

P

is:

Q. For the reaction:

2 H I (g) ⇌ H_{2} (g) + I_{2} (g)

The degree of dissociation (A) of

H I

(g) is related to equilibrium constant,

K_{p}

by the expression

Q. At temperature

T

, a compound

{A B}_{2} (g)

dissociates according to the reaction

2 {A B}_{2} (g) \Leftrightarrow 2 A B (g) + B_{2} (g)

with a degree of dissociation,

x

, which is small compared with unity. Deduce the expression for

K_{p}

in terms of

x

and the total pressure

P

Q. For the reaction,

2 H I (g) ⇌ H_{2} (g) + I_{2} (g)

the degree of dissociation

(α)

H I

K_{P}

by expression

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AT temperature T, a compound AB2(g) dissociates according to the reaction, 2AB2(g)⇌2AB(g)+B2(g) with a degree of dissociation, x (where x << 1). If KP and P are equilibrium constant and equilibrium pressure respectively, the value of x is

The correct option is C [2KpP]13 2AB2(g)1−x↔2ABx(g)+B2x2 Total equilibrium moles 1+x2

AT temperature T, a compound $A B_{2} (g)$ dissociates according to the reaction,
$2 A B_{2 (g)} ⇌ 2 A B_{(g)} + B_{2 (g)}$ with a degree of dissociation, x (where x << 1). If KP and P are equilibrium constant and equilibrium pressure respectively, the value of x is

The correct option is C
${[\frac{2 K p}{P}]}^{\frac{1}{3}}$

$2 A B_{2} (g) 1 - x \leftrightarrow 2 A B x (g) + B_{2} \frac{x}{2}$
Total equilibrium moles $1 + \frac{x}{2}$