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 × 10
4 M.
The reaction will proceed -

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


 

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 |
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The concentration of hydrogen ions in a sample of soft drink is 3.8 × 10–3M. The pH of soft drink is-

1. 1.45
2. 2.42
3. 3.76
4. 2.79

Subtopic:  pH calculation |
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