Alpha Question Bank for Engineering: Chemistry>Chapter 5 - Equilibrium>Exercise-1>Q 137

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Consider the decomposition of solid ${NH}_{4} HS$ in a flask containing ${NH}_{3} (g)$ at a pressure of $2 atm$ . What will be the partial pressure of ${NH}_{3} (g)$ and $H_{2} S (g)$ after the equilibrium has been attained? $K_{p}$ for the reaction is $3$ .

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Important Questions on Equilibrium

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Alpha Question Bank for Engineering: Chemistry>Chapter 5 - Equilibrium>Exercise-1>Q 138

For the dissociation reaction

N_{2} O_{4} (g) ⇌ 2 {NO}_{2} (g),

the degree of dissociation

(α)

in terms of

K_{p}

and total equilibrium pressure

P

is:

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Alpha Question Bank for Engineering: Chemistry>Chapter 5 - Equilibrium>Exercise-1>Q 139

The degree of dissociation of

{SO}_{3}

is

α

at equilibrium pressure

P_{\circ} . K_{p}

for

2 {SO}_{3} (g) ⇌ 2 {SO}_{2} (g) + O_{2} (g)

is:

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Alpha Question Bank for Engineering: Chemistry>Chapter 5 - Equilibrium>Exercise-1>Q 143

The degree of dissociation

(α)

of

{PCl}_{5}

, obeying the equilibrium,

{PCl}_{5} ⇌ {PCl}_{3} + {Cl}_{2}

, is approximately related to the pressure at equilibrium by

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Alpha Question Bank for Engineering: Chemistry>Chapter 5 - Equilibrium>Exercise-1>Q 144

At

727 ° C

and

1.23 atm

of total equilibrium pressure,

{SO}_{3}

is partially dissociated into

{SO}_{2}

and

O_{2}

, according to the following reaction:

{SO}_{3} (g) ⇌ {SO}_{2} (g) + 1 / 2 O_{2} (g) .

The density of the equilibrium mixture is

0.9 gm / litre

. The degree of dissociation is

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Alpha Question Bank for Engineering: Chemistry>Chapter 5 - Equilibrium>Exercise-1>Q 145

Consider the following hypothetical equilibrium

2 B (g) ⇌ B_{2} (g)

. If

d

is observed vapour density and

D

is theoretical vapour density, then degree of association

(α)

will be:

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Alpha Question Bank for Engineering: Chemistry>Chapter 5 - Equilibrium>Exercise-1>Q 146

The degree of dissociation is

0.5

at

800 K

and

2 atm

for the gaseous reaction

{PCl}_{5} ⇌ {PCl}_{3} + {Cl}_{2}

. Assuming ideal behaviour of all the gases. Calculate the density of equilibrium mixture at

800 K

and

2 atm

.

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Alpha Question Bank for Engineering: Chemistry>Chapter 5 - Equilibrium>Exercise-1>Q 147

${SO}_{3} (g) ⇌ {SO}_{2} (g) + \frac{1}{2} O_{2} (g)$

If observed vapour density of mixture at equilibrium is $35$ then find out value of $α$ .

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Alpha Question Bank for Engineering: Chemistry>Chapter 5 - Equilibrium>Exercise-1>Q 148

For the reaction $H_{2} (g) + I_{2} (g) ⇌ 2 HI (g)$

$K_{c} = 66.9$ at $350 ° C$ and $K_{c} = 50.0$ at $448 ° C$ . The reaction has: