For the equilibrium reaction:

2NOCl(g) ⇌ 2NO(g) + Cl₂(g)

The equilibrium constant in terms of concentration (Kc) is 3.0 × 10⁻⁶ at 1000 K.
Calculate the value of Kp for the reaction at this temperature.

 (Given R - 8.314 JK-1):
1. \(1.493\) 2. \(2.494\times10^{-2}\)
3. \(3.0\times10^{-6}\) 4. \(2.494\times10^{-4}\)
Subtopic:  Kp, Kc & Factors Affecting them |
 77%
Level 2: 60%+
NEET - 2024
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For the reaction \(2 \mathrm{A} \rightleftharpoons \mathrm{B}+\mathrm{C}; ~\mathrm{K}_{\mathrm{c}}=4 \times 10^{-3}\).
At a given time, the composition of the reaction mixture is : \([\mathrm{A}]=[\mathrm{B}]=[\mathrm{C}]=2 \times 10^{-3} \mathrm{M} \text {. }\)

In light of the above facts, which of the following is correct?
1. Reaction has a tendency to go in the forward direction.
2. Reaction has a tendency to go in the backward direction.
3. Reaction has gone to completion in the forward direction.
4. Reaction is at an equilibrium.
Subtopic:  Kp, Kc & Factors Affecting them | Le Chatelier's principle |
 58%
Level 3: 35%-60%
NEET - 2024
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The ratio of \({{K_{P}}\over{K_{C}}}\) for the reaction

CO(g)+12O2(g)⇌CO2(g) is:

1. (RT)1/2  2. (RT)-1/2 
3. RT 4. 1

Subtopic:  Kp, Kc & Factors Affecting them |
 90%
Level 1: 80%+
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\(\mathrm{K}_{\mathrm{c}}=\frac{\left[\mathrm{NH}_3\right]^4\left[\mathrm{O}_2\right]^5}{[\mathrm{NO}]^4\left[\mathrm{H}_2 \mathrm{O}]^6\right.}\)
The balanced chemical equation corresponding to the above-mentioned expression is:

1. \(4 \mathrm{NO}_{(\mathrm{g})}+6 \mathrm{H}_2 \mathrm{O}_{(\mathrm{g})} \rightleftharpoons 4 \mathrm{NH}_{3(\mathrm{g})}+5 \mathrm{O}_{2(\mathrm{g})} \)
2. \(4 \mathrm{NH}_3(\mathrm{g})+5 \mathrm{O}_{2(\mathrm{g})} \rightleftharpoons 4 \mathrm{NO}_{(\mathrm{g})}+6 \mathrm{H}_2 \mathrm{O}_{(\mathrm{g})}\)
3. \(\ 2 \mathrm{NO}_{(\mathrm{g})}+3 \mathrm{H}_2 \mathrm{O}_{(\mathrm{g})} \rightleftharpoons 4 \mathrm{NH}_{3(\mathrm{g})}+3 \mathrm{O}_{2(\mathrm{g})}\)
4. \(\ \mathrm{NH}_{3(\mathrm{g})}+3 \mathrm{H}_2 \mathrm{O}_{(\mathrm{g})} \rightleftharpoons 2 \mathrm{NO}_{(\mathrm{g})}+3 \mathrm{O}_{2(\mathrm{g})}\)
Subtopic:  Kp, Kc & Factors Affecting them |
 93%
Level 1: 80%+
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The equilibrium reaction that doesn't have equal values for Kc and Kp is: 

1. \(2NO(g) \rightleftharpoons N_2(g) + O_2(g)\)
2. \(SO_2(g) + NO_2(g) \rightleftharpoons SO_3(g) + NO(g)\)
3. \(H_2(g) + I_2(g) \rightleftharpoons 2HI (g)\)
4. \(2C(s) + O_2(g) \rightleftharpoons 2CO_2(g)\)

Subtopic:  Kp, Kc & Factors Affecting them |
 92%
Level 1: 80%+
AIPMT - 2010
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Find the equilibrium constant K for the reaction:

NO₂(g) ⇌ ½N₂(g) + O₂(g)

Given:

N₂(g) + O₂(g) ⇌ 2NO(g), K₁

2NO(g) + O₂(g) ⇌ 2NO₂(g), K₂

1. 4K₁K₂
2. [1/(K₁K₂)]¹ᐟ²
3. 1/(K₁K₂)
4. 1/(2K₁K₂)
Subtopic:  Kp, Kc & Factors Affecting them |
 89%
Level 1: 80%+
AIPMT - 2011
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Find the equilibrium constant for the reaction:

H₂(g) + I₂(g) ⇌ 2HI(g)

Given that:

HI(g) ⇌ ½H₂(g) + ½I₂(g)  K = 8

1. \(1 \over 16\) 2. \(1 \over 64\)
3. 16 4. \(1 \over 8\)
Subtopic:  Kp, Kc & Factors Affecting them |
 87%
Level 1: 80%+
AIPMT - 2008
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For the following equilibrium, Kc= 6.3 × 1014 at 1000 K

NO(g) + O3 (g) → NO2(g) + O2 (g) 

The value of Kc for the reverse reaction is:

1. 2.33 × 10-16
2. 1.59 × 10-15
3. 2.67 × 10-13
4. 4.47 × 1014

Subtopic:  Kp, Kc & Factors Affecting them |
 90%
Level 1: 80%+
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The value of ∆n for the following reaction will be :

NH4Cl(s)⇌NH3(g)+HCl(g)

1. 1 2. 0.5
3. 1.5 4. 2
Subtopic:  Kp, Kc & Factors Affecting them |
 87%
Level 1: 80%+
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For the reaction 2NOCl(g)⇔2NO(g)+Cl2(g), KC at 427°C is \(3\times 10^{-6} \ mol\ L^{-1}\). The value of Kp will be :

1. 1.72×10-4

2. 7.50×105

3. 2.50×10-5

4. 2.50×10-4

Subtopic:  Kp, Kc & Factors Affecting them |
 84%
Level 1: 80%+
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