Q. No.Subtopic: Kp, Kc & Factors Affecting them |
94%
Level 1: 80%+
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For which of the following reactions \(K_p=K_c \) :
1. \(2 \mathrm{NOCl}(\mathrm{g})=2 \mathrm{NO}(\mathrm{g})+\mathrm{Cl}_2(\mathrm{g}) \)
2. \(\mathrm{N}_2(\mathrm{g})+3 \mathrm{H}_2(\mathrm{g}) \rightleftharpoons 2 \mathrm{NH}_3(\mathrm{g}) \)
3. \(\mathrm{H}_2(\mathrm{g})+\mathrm{Cl}_2(\mathrm{g}) \rightleftharpoons 2 \mathrm{HCl}(\mathrm{g}) \)
4. \(\mathrm{N}_2 \mathrm{O}_4(\mathrm{g}) \rightleftharpoons 2 \mathrm{NO}_2(\mathrm{g})\)
1. \(2 \mathrm{NOCl}(\mathrm{g})=2 \mathrm{NO}(\mathrm{g})+\mathrm{Cl}_2(\mathrm{g}) \)
2. \(\mathrm{N}_2(\mathrm{g})+3 \mathrm{H}_2(\mathrm{g}) \rightleftharpoons 2 \mathrm{NH}_3(\mathrm{g}) \)
3. \(\mathrm{H}_2(\mathrm{g})+\mathrm{Cl}_2(\mathrm{g}) \rightleftharpoons 2 \mathrm{HCl}(\mathrm{g}) \)
4. \(\mathrm{N}_2 \mathrm{O}_4(\mathrm{g}) \rightleftharpoons 2 \mathrm{NO}_2(\mathrm{g})\)
Subtopic: Kp, Kc & Factors Affecting them |
94%
Level 1: 80%+
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The value of Kp for the following reaction at 100 K will be:
\(2 \mathrm{NOCl}(\mathrm{g}) \rightleftharpoons 2 \mathrm{NO}(\mathrm{g})+\mathrm{Cl}_2(\mathrm{~g})\)
(Equilibrium constant, Kc at 100 K is \(3 \times 10^{-4} \) and R is 8.314 J/mol K)
1. 0.25
2. 0.025
3. 2.5
4. 25
\(2 \mathrm{NOCl}(\mathrm{g}) \rightleftharpoons 2 \mathrm{NO}(\mathrm{g})+\mathrm{Cl}_2(\mathrm{~g})\)
(Equilibrium constant, Kc at 100 K is \(3 \times 10^{-4} \) and R is 8.314 J/mol K)
1. 0.25
2. 0.025
3. 2.5
4. 25
Subtopic: Kp, Kc & Factors Affecting them |
84%
Level 1: 80%+
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Consider the given reaaction:
\(\mathrm{PCl}_5 \leftrightharpoons\mathrm{PCl}_3+\mathrm{Cl}_2\)
At equilibrium at \(500 \mathrm{~K},\) the concentration of \(\mathrm{PCl}_5=1.40~ \mathrm{M} \text {, }\) concentration of \(\mathrm{Cl}_2=1.60~ \mathrm{M} \text {, }\) concentration of \(\mathrm{PCl}_3=1.60 \mathrm{M}\). Calculate \(K_c\):
1. 2.00
2. 2.6
3. 1.83
4. 3.4
\(\mathrm{PCl}_5 \leftrightharpoons\mathrm{PCl}_3+\mathrm{Cl}_2\)
At equilibrium at \(500 \mathrm{~K},\) the concentration of \(\mathrm{PCl}_5=1.40~ \mathrm{M} \text {, }\) concentration of \(\mathrm{Cl}_2=1.60~ \mathrm{M} \text {, }\) concentration of \(\mathrm{PCl}_3=1.60 \mathrm{M}\). Calculate \(K_c\):
1. 2.00
2. 2.6
3. 1.83
4. 3.4
Subtopic: Kp, Kc & Factors Affecting them |
88%
Level 1: 80%+
NEET - 2024
Hints
Kc and Kp are not equal for a reaction given below:
1. 2NO(g) N2(g) + O2(g)
2. SO2(g) + NO2(g) SO3(g) + NO(g)
3. H2(g) + I2(g) 2HI(g)
4. 2C(s) + O2(g) 2CO2(g)
Subtopic: Kp, Kc & Factors Affecting them |
89%
Level 1: 80%+
NEET - 2010
Hints
Which of the following reactions satisfies the condition \(K_p>K_c \text { ? }\)
1. H2(g) + I2(g) → 2HI(g)
2. N2(g) + 3H2(g) → 2NH3(g)
3. 2SO3(g) → 2SO2(g) + O2(g)
4. PCl3(g) + Cl2(g) → PCl5(g)
Subtopic: Kp, Kc & Factors Affecting them |
87%
Level 1: 80%+
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Consider the following equilibrium reactions along with their respective equilibrium constants:
\(\begin{aligned} & x \rightleftharpoons y~ ;~~ k_1=1 \\ & y \rightleftharpoons z ~; ~~k_2=2 \\ & z \rightleftharpoons w~ ; ~~k_3=4 \end{aligned}\)
Now, calculate the overall equilibrium constant \(k_{\text{eq}}\) for the reaction:
\( \mathrm{x} \rightleftharpoons \mathrm{w}\)
Choose the correct answer:
\(\begin{aligned} & x \rightleftharpoons y~ ;~~ k_1=1 \\ & y \rightleftharpoons z ~; ~~k_2=2 \\ & z \rightleftharpoons w~ ; ~~k_3=4 \end{aligned}\)
Now, calculate the overall equilibrium constant \(k_{\text{eq}}\) for the reaction:
\( \mathrm{x} \rightleftharpoons \mathrm{w}\)
Choose the correct answer:
| 1. | 10 | 2. | 8 |
| 3. | 2 | 4. | 4 |
Subtopic: Kp, Kc & Factors Affecting them |
89%
Level 1: 80%+
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Match the chemical reactions in Column-I with the corresponding units of Kp in Column-II and mark the appropriate choice:
1. A→R; B→Q; C→P; D→S
2. A→P; B→Q; C→R; D→S
3. A→S; B→Q; C→P; D→R
4. A→S; B→Q; C→R; D→P
| Column-I (Chemical reactions) |
Column-II (Corresponding units) |
||
| (A) | \(3O_2(g) \rightleftharpoons 2O_3(g) \) | (P) | no unit |
| (B) | \(SO_2(g) +{1 \over 2}O_2(g) \rightleftharpoons SO_3(g)\) | (Q) | atm-1/2 |
| (C) | \(2HF(g) \rightleftharpoons H_2(g) + F_2(g)\) | (R) | atm-1 |
| (D) | \(\small{CO(g) + 3H_2(g) \rightleftharpoons CH_4(g) + H_2O(g)}\) | (S) | atm-2 |
1. A→R; B→Q; C→P; D→S
2. A→P; B→Q; C→R; D→S
3. A→S; B→Q; C→P; D→R
4. A→S; B→Q; C→R; D→P
Subtopic: Introduction To Equilibrium | Kp, Kc & Factors Affecting them |
89%
Level 1: 80%+
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Subtopic: Kp, Kc & Factors Affecting them |
88%
Level 1: 80%+
Hints
The equilibrium constants for the following reactions are \(K_1 \) and \(K_2\) respectively:
2P(g) + 3Cl2(g) ⇌ 2PCl3(g): K1
PCl3(g) + Cl2(g) ⇌ PCl5(g): K2
Determine the equilibrium constant for the overall reaction: 2P(g)+ 5Cl2(g) ⇌ 2PCl5(g)
| 1. | K1K2 | 2. | K1K22 |
| 3. | K12K22 | 4. | K12K2 |
Subtopic: Kp, Kc & Factors Affecting them |
87%
Level 1: 80%+
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