Chapterwise/Topicwise Daily Practice Problems (DPP) Physical Chemistry Part 1 JEE Main & Advanced>Chapter 6 - Chemical Equilibrium>DPP 6.3>Q 13

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IMPORTANT

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The thermal dissociation equilibrium reaction of ${CaCO}_{3} (s)$ is studied under different conditions
${CaCO}_{3} (s) ⇌ CaO (s) + {CO}_{2} (g)$

For this equilibrium reaction, the correct statement(s) is/ (are):

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Important Questions on Chemical Equilibrium

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JEE Main

IMPORTANT

Chapterwise/Topicwise Daily Practice Problems (DPP) Physical Chemistry Part 1 JEE Main & Advanced>Chapter 6 - Chemical Equilibrium>DPP 6.3>Q 14

When

{NaNO}_{3}

is heated in a closed vessel, oxygen is liberated and

{NaNO}_{2}

is left behind. At equilibrium

{NaNO}_{3} (s) ⇌ {NaNO}_{2} (s) + \frac{1}{2} O_{2} (g)

,

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Chapterwise/Topicwise Daily Practice Problems (DPP) Physical Chemistry Part 1 JEE Main & Advanced>Chapter 6 - Chemical Equilibrium>DPP 6.3>Q 15

An industrial fuel, 'water gas', which consists of a mixture of

H_{2}

and

CO

can be made by passing steam over red-hot carbon. The reaction is

C (s) + H_{2} O (g) ⇌ CO (g) + H_{2} (g), ΔH = + 131 kJ

The yield of

CO

and

H_{2}

at equilibrium would be shifted to the product side by:

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Chapterwise/Topicwise Daily Practice Problems (DPP) Physical Chemistry Part 1 JEE Main & Advanced>Chapter 6 - Chemical Equilibrium>DPP 6.3>Q 16

The reactions in which the yield of the products cannot be increased by applying high pressure are

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Chapterwise/Topicwise Daily Practice Problems (DPP) Physical Chemistry Part 1 JEE Main & Advanced>Chapter 6 - Chemical Equilibrium>DPP 6.3>Q 17

For the reaction:

{PCl}_{5} (g) ⇌ {PCl}_{3} (g) + {Cl}_{2} (g)

The forward reaction at constant temperature is favoured by

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Chapterwise/Topicwise Daily Practice Problems (DPP) Physical Chemistry Part 1 JEE Main & Advanced>Chapter 6 - Chemical Equilibrium>DPP 6.3>Q 18

For the reaction,

2 A (g) + B (g) ⇌ 2 C (g), ΔH = + 13.6 kJ

, which of the following will increase the extent of the reaction at equilibrium?

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IMPORTANT

Chapterwise/Topicwise Daily Practice Problems (DPP) Physical Chemistry Part 1 JEE Main & Advanced>Chapter 6 - Chemical Equilibrium>DPP 6.4>Q 1

The degree of dissociation of

N_{2} O_{4}

into

{NO}_{2}

at one atmospheric pressure and

313 K

is

0.310

. Calculate

K_{p}

of the dissociation reaction at this temperature. What will be the degree of dissociation at

10

atmospheric pressure at the same temperature?

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JEE Main

IMPORTANT

Chapterwise/Topicwise Daily Practice Problems (DPP) Physical Chemistry Part 1 JEE Main & Advanced>Chapter 6 - Chemical Equilibrium>DPP 6.4>Q 2

At

77 ° C

and one atmospheric pressure,

N_{2} O_{4}

is

70 %

dissociated into

{NO}_{2}

. What will be the volume occupied by the mixture under these conditions, if we start with

10 g

of

N_{2} O_{4} ?

HARD

JEE Main

IMPORTANT

Chapterwise/Topicwise Daily Practice Problems (DPP) Physical Chemistry Part 1 JEE Main & Advanced>Chapter 6 - Chemical Equilibrium>DPP 6.4>Q 3

For the equilibrium reaction,

LiCl . 3 {NH}_{3} (s) ⇌ LiCl . {NH}_{3} (s) + 2 {NH}_{3}

K_{P} = 9 {atm}^{2},

at

40 ° C .

A

5 L

vessel contains

0.1 mole

of

LiCl

{NH}_{3} .

How many moles of

{NH}_{3}

should be added to the flask at this temperature to drive the backward reaction for completion?