# For the equilibrium, 2NOCl(g) $⇋$2NO(g) + Cl2(g) the value of the equilibrium constant, Kc  is 3.75 × 10–6 at 1069 K.  The value of Kp for the reaction at this temperature is: 1. 0.048 2. 0.67 3. 0.29 4. 0.033

Subtopic:  Kp, Kc & Factors Affecting them |
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The value of Kp for the reaction,

CO2 (g) + C (s) $⇋$2CO (g)

is 3.0 at 1000 K. If initially  $$P_{CO_{2}}$$= 0.48 bar and PCO = 0 bar and pure graphite is present.
The equilibrium partial pressures of CO and CO
2 are respectively-

 1 0.56 bar; 0.15 bar 2 0.15 bar; 0.75 bar 3 0.66 bar; 0.15 bar 4 0.66 bar; 0.25 bar
Subtopic:  Introduction To Equilibrium |
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The value of Kc for the reaction 2A $⇋$B + C is 2 × 10–3. At a given time, the composition of the reaction mixture is [A] = [B] = [C] = 3 × 104 M.
The reaction will proceed:

1. In the backward direction
2. In the forward direction
3. In both direction
4. Cannot be predicted

Subtopic:  Introduction To Equilibrium |
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13.8g of N2O4 was placed in a 1L reaction vessel at 400K and allowed to attain equilibrium

N2O4 (g) $⇋$ 2NO2 (g)

The total pressure at equilbrium was found to be 9.15 bar. The  value of Kc is:

1. 3.2
2. 2.6
3. 2.1
4. 3.6

Subtopic:  Kp, Kc & Factors Affecting them |
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3.00 mol of PCl5 kept in 1L closed reaction vessel was allowed to attain equilibrium at 380K. The
composition of the mixture at equilibrium is:

(Given: Kc= 1.80)

1. [PCl
5] = 1.41 M; [PCl3] = [Cl2] = 1.59 M
2. [PCl
5] = 1.61 M; [PCl3] = [Cl2] = 1.59 M
3. [PCl
5] = 1.91 M; [PCl3] = [Cl2] = 1.71 M
4. [PCl
5] = 2.41 M; [PCl3] = [Cl2] = 1.19 M

Subtopic:  Introduction To Equilibrium |
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The value of G for the phosphorylation of glucose in glycolysis is 13.8 kJ/mol.
The value of
Kc at 298 K is:

1. 5.21 × 103
2. 3.56 × 103
3. 2.81 × 103
4. 3.81 × 103

Subtopic:  Kp, Kc & Factors Affecting them |
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Hydrolysis of sucrose gives,

Sucrose + H2O  $⇋$Glucose + Fructose

The equilibrium constant Kc for the reaction is 2 ×1013 at 300K. The value of G at 300K is:

1. – 5.64 ×10
4 J mol–1
2. – 7.64 ×104 J mol–1
3. – 6.64 ×104 J mol–1
4. – 8.64 ×104 J mol–1

Subtopic:  Kp, Kc & Factors Affecting them |
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The correct match among the following is/are:

 Acid Conjugate Base a. HF H2F– b. H2SO4 HSO4– c. $$HCO_{3}^{-}$$ $$CO_{3}^{2-}$$

 1 a, c 2 a, b 3 b, c 4 Only c is correct
Subtopic:  Acids & Bases - Definitions & Classification |
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The correct match among the following is/are-

 Bronsted bases Conjugate Acid a. $$NH_{2}^{-}$$ NH3 b. NH3 $$NH_{4}^{+}$$ c. $$HCOO^{-}$$ $$CO_{2}^{2-}$$

1. a, c
2. a, b
3. b, c
4. Only c is correct

Subtopic:  Acids & Bases - Definitions & Classification |
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The incorrect match among the following  is:

a. HO = Lewis base
b.
F = Lewis base
c.
H+ = Lewis acid
d.
BCl3 = Lewis base

1. Both a and b
2. Only b
3. Only d
4. Both a and d

Subtopic:  Acids & Bases - Definitions & Classification |
76%
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