Le Chatelier’s Principle and Applications
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CHXI07:EQUILIBRIUM

314817 The effect of addition of helium gas to the following reaction in equilibrium state, is :
\({\text{PC}}{{\text{l}}_{5(g)}} \rightleftharpoons {\text{PC}}{{\text{l}}_{3(\;{\text{g}})}} + {\text{C}}{{\text{l}}_{2(\;{\text{g}})}}\)

1 addition of helium will not affect the equilibrium.
2 the equilibrium will shift in the forward direction and more of \(\mathrm{Cl}_{2}\) and \(\mathrm{PCl}_{3}\) gases will be produced.
3 the equilibrium will go backward due to suppression of dissociation of \(\mathrm{PCl}_{5}\)
4 helium will deactivate \(\mathrm{PCl}_{5}\) and reaction will stop.
JEE - 2023
CHXI07:EQUILIBRIUM

314818 Statement A :
In the dissociation of \(\mathrm{PCl}_{5}\) at constant pressure and temperature, addition of helium at equilibrium increases the dissociation \(\mathrm{PCl}_{5}\).
Statement B :
Helium removes \(\mathrm{Cl}_{2}\) from the field of action.

1 Statement A is correct but Statement B is incorrect.
2 Statement A is incorrect but Statement B is correct.
3 Both statements are correct.
4 Both Statements are incorrect.
CHXI07:EQUILIBRIUM

314822 Predict the effect of increased pressure on the following reaction equilibrium, \(2{\text{S}}{{\text{O}}_2}({\text{g}}) + {{\text{O}}_2}({\text{g}}) \rightleftharpoons 2{\text{S}}{{\text{O}}_3}({\text{g}})\)

1 Equilibrium shift to the right
2 Equilibrium shift to the left
3 No effect on equilibrium
4 Reaction stops
CHXI07:EQUILIBRIUM

314823 In which of the equilibria, the position of the equilibrium shifts towards products, if the total pressure is increased

1 \(\mathrm{N}_{2}(\mathrm{~g})+3 \mathrm{H}_{2}(\mathrm{~g}) \rightleftharpoons 2 \mathrm{NH}_{3}(\mathrm{~g})\)
2 \(\mathrm{I}_{2}(\mathrm{~g})+\mathrm{H}_{2}(\mathrm{~g}) \rightleftharpoons 2 \mathrm{HI}(\mathrm{g})\)
3 \(\mathrm{N}_{2}(\mathrm{~g})+\mathrm{O}_{2}(\mathrm{~g}) \rightleftharpoons 2 \mathrm{NO}(\mathrm{g})\)
4 \(\mathrm{N}_{2} \mathrm{O}_{4}(\mathrm{~g}) \rightleftharpoons 2 \mathrm{NO}_{2}(\mathrm{~g})\)
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CHXI07:EQUILIBRIUM

314817 The effect of addition of helium gas to the following reaction in equilibrium state, is :
\({\text{PC}}{{\text{l}}_{5(g)}} \rightleftharpoons {\text{PC}}{{\text{l}}_{3(\;{\text{g}})}} + {\text{C}}{{\text{l}}_{2(\;{\text{g}})}}\)

1 addition of helium will not affect the equilibrium.
2 the equilibrium will shift in the forward direction and more of \(\mathrm{Cl}_{2}\) and \(\mathrm{PCl}_{3}\) gases will be produced.
3 the equilibrium will go backward due to suppression of dissociation of \(\mathrm{PCl}_{5}\)
4 helium will deactivate \(\mathrm{PCl}_{5}\) and reaction will stop.
JEE - 2023
CHXI07:EQUILIBRIUM

314818 Statement A :
In the dissociation of \(\mathrm{PCl}_{5}\) at constant pressure and temperature, addition of helium at equilibrium increases the dissociation \(\mathrm{PCl}_{5}\).
Statement B :
Helium removes \(\mathrm{Cl}_{2}\) from the field of action.

1 Statement A is correct but Statement B is incorrect.
2 Statement A is incorrect but Statement B is correct.
3 Both statements are correct.
4 Both Statements are incorrect.
CHXI07:EQUILIBRIUM

314822 Predict the effect of increased pressure on the following reaction equilibrium, \(2{\text{S}}{{\text{O}}_2}({\text{g}}) + {{\text{O}}_2}({\text{g}}) \rightleftharpoons 2{\text{S}}{{\text{O}}_3}({\text{g}})\)

1 Equilibrium shift to the right
2 Equilibrium shift to the left
3 No effect on equilibrium
4 Reaction stops
CHXI07:EQUILIBRIUM

314823 In which of the equilibria, the position of the equilibrium shifts towards products, if the total pressure is increased

1 \(\mathrm{N}_{2}(\mathrm{~g})+3 \mathrm{H}_{2}(\mathrm{~g}) \rightleftharpoons 2 \mathrm{NH}_{3}(\mathrm{~g})\)
2 \(\mathrm{I}_{2}(\mathrm{~g})+\mathrm{H}_{2}(\mathrm{~g}) \rightleftharpoons 2 \mathrm{HI}(\mathrm{g})\)
3 \(\mathrm{N}_{2}(\mathrm{~g})+\mathrm{O}_{2}(\mathrm{~g}) \rightleftharpoons 2 \mathrm{NO}(\mathrm{g})\)
4 \(\mathrm{N}_{2} \mathrm{O}_{4}(\mathrm{~g}) \rightleftharpoons 2 \mathrm{NO}_{2}(\mathrm{~g})\)
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CHXI07:EQUILIBRIUM

314817 The effect of addition of helium gas to the following reaction in equilibrium state, is :
\({\text{PC}}{{\text{l}}_{5(g)}} \rightleftharpoons {\text{PC}}{{\text{l}}_{3(\;{\text{g}})}} + {\text{C}}{{\text{l}}_{2(\;{\text{g}})}}\)

1 addition of helium will not affect the equilibrium.
2 the equilibrium will shift in the forward direction and more of \(\mathrm{Cl}_{2}\) and \(\mathrm{PCl}_{3}\) gases will be produced.
3 the equilibrium will go backward due to suppression of dissociation of \(\mathrm{PCl}_{5}\)
4 helium will deactivate \(\mathrm{PCl}_{5}\) and reaction will stop.
JEE - 2023
CHXI07:EQUILIBRIUM

314818 Statement A :
In the dissociation of \(\mathrm{PCl}_{5}\) at constant pressure and temperature, addition of helium at equilibrium increases the dissociation \(\mathrm{PCl}_{5}\).
Statement B :
Helium removes \(\mathrm{Cl}_{2}\) from the field of action.

1 Statement A is correct but Statement B is incorrect.
2 Statement A is incorrect but Statement B is correct.
3 Both statements are correct.
4 Both Statements are incorrect.
CHXI07:EQUILIBRIUM

314822 Predict the effect of increased pressure on the following reaction equilibrium, \(2{\text{S}}{{\text{O}}_2}({\text{g}}) + {{\text{O}}_2}({\text{g}}) \rightleftharpoons 2{\text{S}}{{\text{O}}_3}({\text{g}})\)

1 Equilibrium shift to the right
2 Equilibrium shift to the left
3 No effect on equilibrium
4 Reaction stops
CHXI07:EQUILIBRIUM

314823 In which of the equilibria, the position of the equilibrium shifts towards products, if the total pressure is increased

1 \(\mathrm{N}_{2}(\mathrm{~g})+3 \mathrm{H}_{2}(\mathrm{~g}) \rightleftharpoons 2 \mathrm{NH}_{3}(\mathrm{~g})\)
2 \(\mathrm{I}_{2}(\mathrm{~g})+\mathrm{H}_{2}(\mathrm{~g}) \rightleftharpoons 2 \mathrm{HI}(\mathrm{g})\)
3 \(\mathrm{N}_{2}(\mathrm{~g})+\mathrm{O}_{2}(\mathrm{~g}) \rightleftharpoons 2 \mathrm{NO}(\mathrm{g})\)
4 \(\mathrm{N}_{2} \mathrm{O}_{4}(\mathrm{~g}) \rightleftharpoons 2 \mathrm{NO}_{2}(\mathrm{~g})\)
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CHXI07:EQUILIBRIUM

314817 The effect of addition of helium gas to the following reaction in equilibrium state, is :
\({\text{PC}}{{\text{l}}_{5(g)}} \rightleftharpoons {\text{PC}}{{\text{l}}_{3(\;{\text{g}})}} + {\text{C}}{{\text{l}}_{2(\;{\text{g}})}}\)

1 addition of helium will not affect the equilibrium.
2 the equilibrium will shift in the forward direction and more of \(\mathrm{Cl}_{2}\) and \(\mathrm{PCl}_{3}\) gases will be produced.
3 the equilibrium will go backward due to suppression of dissociation of \(\mathrm{PCl}_{5}\)
4 helium will deactivate \(\mathrm{PCl}_{5}\) and reaction will stop.
JEE - 2023
CHXI07:EQUILIBRIUM

314818 Statement A :
In the dissociation of \(\mathrm{PCl}_{5}\) at constant pressure and temperature, addition of helium at equilibrium increases the dissociation \(\mathrm{PCl}_{5}\).
Statement B :
Helium removes \(\mathrm{Cl}_{2}\) from the field of action.

1 Statement A is correct but Statement B is incorrect.
2 Statement A is incorrect but Statement B is correct.
3 Both statements are correct.
4 Both Statements are incorrect.
CHXI07:EQUILIBRIUM

314822 Predict the effect of increased pressure on the following reaction equilibrium, \(2{\text{S}}{{\text{O}}_2}({\text{g}}) + {{\text{O}}_2}({\text{g}}) \rightleftharpoons 2{\text{S}}{{\text{O}}_3}({\text{g}})\)

1 Equilibrium shift to the right
2 Equilibrium shift to the left
3 No effect on equilibrium
4 Reaction stops
CHXI07:EQUILIBRIUM

314823 In which of the equilibria, the position of the equilibrium shifts towards products, if the total pressure is increased

1 \(\mathrm{N}_{2}(\mathrm{~g})+3 \mathrm{H}_{2}(\mathrm{~g}) \rightleftharpoons 2 \mathrm{NH}_{3}(\mathrm{~g})\)
2 \(\mathrm{I}_{2}(\mathrm{~g})+\mathrm{H}_{2}(\mathrm{~g}) \rightleftharpoons 2 \mathrm{HI}(\mathrm{g})\)
3 \(\mathrm{N}_{2}(\mathrm{~g})+\mathrm{O}_{2}(\mathrm{~g}) \rightleftharpoons 2 \mathrm{NO}(\mathrm{g})\)
4 \(\mathrm{N}_{2} \mathrm{O}_{4}(\mathrm{~g}) \rightleftharpoons 2 \mathrm{NO}_{2}(\mathrm{~g})\)
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