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11th CBSE

IMPORTANT

Earn 100

A vessel at $1000 K$ contains ${CO}_{2}$ with a pressure of $0.5 atm$ . Some of the ${CO}_{2}$ is converted into $CO$ on the addition of graphite. If the total pressure at equilibrium is $0.8 atm$ , the value of $K$ is

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Important Questions on Equilibrium in Physical and Chemical Processes

HARD

11th CBSE

IMPORTANT

Pradeep's Chemistry Vol 1>Chapter 8 - Equilibrium in Physical and Chemical Processes>Competition Focus>Q 51

For the reaction

C (s) + {CO}_{2} (g) ⇌ 2 CO (g), K_{p} = 63 atm

100 K

. If at equilibrium,

p_{CO} = 10 p_{{CO}_{2}}

, then the total pressure of the gases at equilibrium is

HARD

11th CBSE

IMPORTANT

Pradeep's Chemistry Vol 1>Chapter 8 - Equilibrium in Physical and Chemical Processes>Competition Focus>Q 52

In the reaction

AB (g) ⇌ A (g) + B (g)

30 ° C, K_{p}

for the dissociation equilibrium is

2.56 \times 10^{- 2} atm

. If the total pressure at equilibrium is

1 atm

, then the percentage dissociation of

AB

HARD

11th CBSE

IMPORTANT

Pradeep's Chemistry Vol 1>Chapter 8 - Equilibrium in Physical and Chemical Processes>Competition Focus>Q 53

20 litre

container at

400 K

contains

{CO}_{2} (g)

at pressure

0.4 atm

and an excess of

SrO

(neglect the volume of solid

SrO

). The volume of the container is now decreased by moving the movable piston fitted in the container. The maximum volume of the container when the pressure of

{CO}_{2}

attains its maximum value will be (Given that :

{SrCO}_{3} (s) ⇌ SrO (s) + {CO}_{2} (g), K_{p} = 1 \cdot 6 atm

)

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Pradeep's Chemistry Vol 1>Chapter 8 - Equilibrium in Physical and Chemical Processes>Competition Focus>Q 54

Which of the following statements is correct for a reversible process in a state of equilibrium?

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11th CBSE

IMPORTANT

Pradeep's Chemistry Vol 1>Chapter 8 - Equilibrium in Physical and Chemical Processes>Competition Focus>Q 55

The standard Gibbs energy change at

300 K

for the reaction

2 A ⇌ B + C

2494.2 J

. At a given time, the composition of the reaction mixture is

[A] = \frac{1}{2}, [B] = 2

and,

[C] = \frac{1}{2}

. The reaction proceeds in the:

[R = 8.314 J / K / mol, e = 2.718]

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11th CBSE

IMPORTANT

Pradeep's Chemistry Vol 1>Chapter 8 - Equilibrium in Physical and Chemical Processes>Competition Focus>Q 56

Choose the equilibrium that is not influenced by pressure

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11th CBSE

IMPORTANT

Pradeep's Chemistry Vol 1>Chapter 8 - Equilibrium in Physical and Chemical Processes>Competition Focus>Q 57

The reaction,

{SO}_{2} + {Cl}_{2} ⇌ {SO}_{2} {Cl}_{2}

is exothermic and reversible. A mixture of

{SO}_{2} (g), {Cl}_{2} (g)

and

{SO}_{2} {Cl}_{2} (g)

is at equilibrium in a closed container. Now a certain quantity of extra

{SO}_{2}

is introduced into the container, the volume remaining the same. Which of the following is/are true?

HARD

11th CBSE

IMPORTANT

Pradeep's Chemistry Vol 1>Chapter 8 - Equilibrium in Physical and Chemical Processes>Competition Focus>Q 58

Consider the following equilibrium in a closed container :

N_{2} O_{4} (g) ⇌ 2 {NO}_{2} (g)

At a fixed temperature, the volume of the reaction container is halved. For this change, which of the following statements, holds true regarding the equilibrium constant

(K_{p})

and degree of dissociation

(α)

A vessel at 1000 K contains CO2 with a pressure of 0.5 atm. Some of the CO2 is converted into CO on the addition of graphite. If the total pressure at equilibrium is 0.8 atm, the value of K is

Important Questions on Equilibrium in Physical and Chemical Processes

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A vessel at $1000 K$ contains ${CO}_{2}$ with a pressure of $0.5 atm$ . Some of the ${CO}_{2}$ is converted into $CO$ on the addition of graphite. If the total pressure at equilibrium is $0.8 atm$ , the value of $K$ is