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Characteristics of Chemical Equilibrium

Which of the ...

Question

Which of the following reactions will not get affected on increasing the pressure?

A

2 H_{2 (g)} + C O_{(g)} ⇌ C H_{3} O H_{(g)}

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B

4 N H_{3 (g)} + 5 O_{2 (g)} ⇌ 4 N O_{(g)} + 6 H_{2} O_{(g)}

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C

C H_{4 (g)} + 2 S_{2 (g)} ⇌ C S_{2 (g)} + 2 H_{2} S_{(g)}

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D

P C l_{5 (g)} ⇌ P C l_{3 (g)} + C l_{2 (g)}

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Solution

The correct option is C $C H_{4 (g)} + 2 S_{2 (g)} ⇌ C S_{2 (g)} + 2 H_{2} S_{(g)}$
The equilibrium concentrations of the products and reactants do not directly depend on the total pressure of the system. They may depend on the partial pressures of the products and reactants.
$C H_{4} (g) + 2 S_{2} (g) ⇌ C S_{2} (g) + 2 H_{2} S (g) .$
If the number of moles of gaseous reactants is equal to the number of moles of gaseous products, pressure has no effect on equilibrium.
Changing total pressure by adding an inert gas at constant volume does not affect the equilibrium concentrations Changing total pressure by changing the volume of the system changes the partial pressures of the products and reactants and can affect the equilibrium concentrations.

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Similar questions

Q. Which of the following reactions will get affected by increasing the pressure? Also, mention whether change will cause the reaction to go into forward or backward direction.
(i)

{C O C l}_{2} (g) ⇌ C O (g) + {C l}_{2} (g)

{C H}_{4} (g) + 2 S_{2} (g) ⇌ {C S}_{2} (g) + 2 H_{2} S (g)

{C O}_{2} (g) + C (s) ⇌ 2 C O (g)

2 H_{2} (g) + C O (g) ⇌ {C H}_{3} O H (g)

{C a C O}_{3} (s) ⇌ C a O (s) + {C O}_{2} (g)

4 {N H}_{3} (g) + 5 O_{2} (g) ⇌ 4 N O (g) + 6 H_{2} O (g)

Q. Which of the following reactions will get affected by increase in pressure? Also mention whether the change will cause the reaction to go to the right or left direction.

C H_{4} (g) + 2 S_{2} (g) ⇌ C S_{2} (g) + 2 H_{2} S (g)

C O_{2} (g) + C (s) ⇌ 2 C O (g)

4 N H_{3} (g) + 5 O_{2} (g) ⇌ 4 N O (g) + 6 H_{2} O (g)

C_{2} H_{4} (g) + H_{2} (g) ⇌ C_{2} H_{6} (g)

C O C l_{2} (g) ⇌ C O (g) + C l_{2} (g)

C a C O_{3} (s) ⇌ C a O (s) + C O_{2} (g)

Which of the following reactions will get affected by increasing the pressure?

Also, mention whether change will cause the reaction to go into forward or backward direction.

(i)

(ii)

(iii)

(iv)

(v)

(vi)

Which of the following reactions will get affected by increasing the pressure?

Also, mention whether change will cause the reaction to go into forward or backward direction.

(i)

(ii)

(iii)

(iv)

(v)

(vi)

Which of the following reactions will get affected by increasing the pressure?
Also, mention whether change will cause the reaction to go into forward or backward direction.
(i) $C O C l_{2} (g) \leftrightarrow C O (g) + C l_{2} (g)$
(ii) $C H_{4} (g) + 2 S_{2} (g) \leftrightarrow C S_{2} (g) + 2 H_{2} S (g)$
(iii) $C O_{2} (g) + C (s) \leftrightarrow 2 C O (g)$
(iv) $2 H_{2} (g) + C O (g) \leftrightarrow C H_{3} O H (g)$
(v) $C a C O_{3} (s) \leftrightarrow C a O (s) + C O_{2} (g)$
(vi) $4 N H_{3} (g) + 5 O_{2} (g) \leftrightarrow 4 N O (g) + 6 H_{2} O (g)$

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