For equilibrium reaction


2NO2(g) ⇌ N2O4(g) + 14.6 J, increase in temperature would

1. Favour the formation of N2O4

2. Stop the reaction

3. Favour the decomposition of N2O4

4. Not alter the equilibrium

Subtopic:  Introduction To Equilibrium |
 68%
From NCERT
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Which of the following favours the backward reaction in a chemical equilibrium?

1. Decreasing the pressure of  the reaction

2. Increasing the concentration of one of the reactants

3. Increasing the concentration of one or more of the products

4. Removal of at least one of the products at regular intervals

Subtopic:  Introduction To Equilibrium |
 82%
From NCERT
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In the reaction H2+I22HI at equilibrium, some I2 is added. What happens to the equilibrium?

1. It gets shifted to the right

2. It remains unchanged

3. It gets shifted to the left

4. First 2 then 3

Subtopic:  Introduction To Equilibrium |
 77%
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Which of the following reaction will be favoured at low pressure?

1. N2+3H22NH3

2. H2+I22HI

3. PCl5PCl3+Cl2

4. N2+O22NO

Subtopic:  Kp, Kc & Factors Affecting them |
 72%
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For the reaction

PCl5(g)PCl3(g)+Cl2(g)

the forward reaction at constant temperature is favoured by

A. introducing an inert gas at constant volume

B. introducing chlorine gas at constant volume

C. introducing an inert gas at constant pressure

D. increasing the volume of the container

E. introducing PCl5 at constant volume

1. A, B, C

2. D, E, C

3. B, C, E

4. A, D, E

Subtopic:  Le Chatelier's principle |
 72%
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For the reaction

CO(g)+H2O(g)CO2(g)+H2(g)

at a given temperature, the equilibrium amount of CO2(g) can be increased by

1. Adding a suitable catalyst

2. Adding an inert gas

3. Decreasing the volume of the container

4. Increasing the amount of CO (g)

Subtopic:  Kp, Kc & Factors Affecting them |
 85%
From NCERT
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In which of the following cases does the reaction remain fastest to completion?

1. K=1

2. K=10

3. K=10-2

4. K=102

Subtopic:  Introduction To Equilibrium |
 78%
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Consider the following reactions:

A. AB2(g)+12B2(g)AB3(g)

B. 2AB3(g)2AB2+B2(g)

If K1 and K2 are the equilibrium constants at 27°C in reactions A and B respectively, then K1, and K2 are related as

1. K12=K2

2. K2K12=1

3. K1=2K2

4. K1K22=1

Subtopic:  Kp, Kc & Factors Affecting them |
 71%
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For the reaction, H2+I22HI, the equilibrium concentrations of H2, I2 and HI are 8, 3 and 28 mol L-1 respectively. Equilibrium constant of the reaction is

1. 32.67

2. 31.67

3. 34.67

4. 36.67

Subtopic:  Kp, Kc & Factors Affecting them |
 81%
From NCERT
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In which of the following case, the value of Kp is less than Kc?

1. N2+O22NO

2. H2+Cl22HCl

3. 2SO2+O22SO3

4. PCl5PCl3+Cl2

Subtopic:  Kp, Kc & Factors Affecting them |
 84%
From NCERT
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