05. Le-Chatelier Principle and It's Application
Chemical Equilibrium

229194 For the gaseous reaction
$\mathrm{C}_{2} \mathrm{H}_{4}+\mathrm{H}_{2} \rightleftharpoons \mathrm{C}_{2} \mathrm{H}_{6}, \Delta \mathrm{H}=-130 \mathrm{kjmol}^{-1}$ carried in a closed vessel, the equilibrium concentration of the $\mathrm{C}_{2} \mathrm{H}_{6}$ can definitely be increased by:

1 increasing temperature and decreasing pressure
2 decreasing temperature and increasing pressure
3 increasing temperature and pressure both
4 decreasing temperature and pressure both
Chemical Equilibrium

229200 When pressure is applied to the equilibrium system ice $\rightleftharpoons$ water. Which of the following phenomenon will happen?

1 More ice will be formed
2 Water will evaporate
3 More water will be formed
4 Equilibrium will not be formed
Chemical Equilibrium

229204 Reaction $\mathrm{BaO}_{2}(\mathrm{~s})$ BaO(s) $+\mathbf{O}_{\mathbf{2}}(\mathrm{g}) ; \Delta \mathbf{H}=$ + ve. In equilibrium condition pressure of $\mathrm{O}_{2}$ depends on

1 Increase mass of $\mathrm{BaO}_{2}$
2 Increase mass of $\mathrm{BaO}$
3 Increase temperature on equilibrium
4 Increase mall of $\mathrm{BaO}_{2}$ and $\mathrm{BaO}$ both
Chemical Equilibrium

229205 In the reaction
$\mathrm{O}_{2}(\mathrm{~g})+\mathrm{N}_{2}(\mathrm{~g}) \rightleftharpoons 2 \mathrm{NO}(\mathrm{g}), \Delta \mathrm{H}=180 \mathrm{KJ} \text {. }$

1 Increasing concentration of $\mathrm{N}_{2}$
2 Increase in pressure
3 Increase in temperature
4 Decrease in temperature
Chemical Equilibrium

229208 The equilibrium will be shifted in the opposite direction if
$\mathrm{PCl}_{3}(\mathrm{~g})+\mathrm{Cl}_{2}(\mathrm{~g}) \rightleftharpoons \mathrm{PCl}_{5} \text { (g) }$

1 $\mathrm{PCl}_{3}$ is added
2 Helium gas is added
3 Catalyst is added
4 Pressure is reduced
Chemical Equilibrium

229194 For the gaseous reaction
$\mathrm{C}_{2} \mathrm{H}_{4}+\mathrm{H}_{2} \rightleftharpoons \mathrm{C}_{2} \mathrm{H}_{6}, \Delta \mathrm{H}=-130 \mathrm{kjmol}^{-1}$ carried in a closed vessel, the equilibrium concentration of the $\mathrm{C}_{2} \mathrm{H}_{6}$ can definitely be increased by:

1 increasing temperature and decreasing pressure
2 decreasing temperature and increasing pressure
3 increasing temperature and pressure both
4 decreasing temperature and pressure both
Chemical Equilibrium

229200 When pressure is applied to the equilibrium system ice $\rightleftharpoons$ water. Which of the following phenomenon will happen?

1 More ice will be formed
2 Water will evaporate
3 More water will be formed
4 Equilibrium will not be formed
Chemical Equilibrium

229204 Reaction $\mathrm{BaO}_{2}(\mathrm{~s})$ BaO(s) $+\mathbf{O}_{\mathbf{2}}(\mathrm{g}) ; \Delta \mathbf{H}=$ + ve. In equilibrium condition pressure of $\mathrm{O}_{2}$ depends on

1 Increase mass of $\mathrm{BaO}_{2}$
2 Increase mass of $\mathrm{BaO}$
3 Increase temperature on equilibrium
4 Increase mall of $\mathrm{BaO}_{2}$ and $\mathrm{BaO}$ both
Chemical Equilibrium

229205 In the reaction
$\mathrm{O}_{2}(\mathrm{~g})+\mathrm{N}_{2}(\mathrm{~g}) \rightleftharpoons 2 \mathrm{NO}(\mathrm{g}), \Delta \mathrm{H}=180 \mathrm{KJ} \text {. }$

1 Increasing concentration of $\mathrm{N}_{2}$
2 Increase in pressure
3 Increase in temperature
4 Decrease in temperature
Chemical Equilibrium

229208 The equilibrium will be shifted in the opposite direction if
$\mathrm{PCl}_{3}(\mathrm{~g})+\mathrm{Cl}_{2}(\mathrm{~g}) \rightleftharpoons \mathrm{PCl}_{5} \text { (g) }$

1 $\mathrm{PCl}_{3}$ is added
2 Helium gas is added
3 Catalyst is added
4 Pressure is reduced
Chemical Equilibrium

229194 For the gaseous reaction
$\mathrm{C}_{2} \mathrm{H}_{4}+\mathrm{H}_{2} \rightleftharpoons \mathrm{C}_{2} \mathrm{H}_{6}, \Delta \mathrm{H}=-130 \mathrm{kjmol}^{-1}$ carried in a closed vessel, the equilibrium concentration of the $\mathrm{C}_{2} \mathrm{H}_{6}$ can definitely be increased by:

1 increasing temperature and decreasing pressure
2 decreasing temperature and increasing pressure
3 increasing temperature and pressure both
4 decreasing temperature and pressure both
Chemical Equilibrium

229200 When pressure is applied to the equilibrium system ice $\rightleftharpoons$ water. Which of the following phenomenon will happen?

1 More ice will be formed
2 Water will evaporate
3 More water will be formed
4 Equilibrium will not be formed
Chemical Equilibrium

229204 Reaction $\mathrm{BaO}_{2}(\mathrm{~s})$ BaO(s) $+\mathbf{O}_{\mathbf{2}}(\mathrm{g}) ; \Delta \mathbf{H}=$ + ve. In equilibrium condition pressure of $\mathrm{O}_{2}$ depends on

1 Increase mass of $\mathrm{BaO}_{2}$
2 Increase mass of $\mathrm{BaO}$
3 Increase temperature on equilibrium
4 Increase mall of $\mathrm{BaO}_{2}$ and $\mathrm{BaO}$ both
Chemical Equilibrium

229205 In the reaction
$\mathrm{O}_{2}(\mathrm{~g})+\mathrm{N}_{2}(\mathrm{~g}) \rightleftharpoons 2 \mathrm{NO}(\mathrm{g}), \Delta \mathrm{H}=180 \mathrm{KJ} \text {. }$

1 Increasing concentration of $\mathrm{N}_{2}$
2 Increase in pressure
3 Increase in temperature
4 Decrease in temperature
Chemical Equilibrium

229208 The equilibrium will be shifted in the opposite direction if
$\mathrm{PCl}_{3}(\mathrm{~g})+\mathrm{Cl}_{2}(\mathrm{~g}) \rightleftharpoons \mathrm{PCl}_{5} \text { (g) }$

1 $\mathrm{PCl}_{3}$ is added
2 Helium gas is added
3 Catalyst is added
4 Pressure is reduced
Chemical Equilibrium

229194 For the gaseous reaction
$\mathrm{C}_{2} \mathrm{H}_{4}+\mathrm{H}_{2} \rightleftharpoons \mathrm{C}_{2} \mathrm{H}_{6}, \Delta \mathrm{H}=-130 \mathrm{kjmol}^{-1}$ carried in a closed vessel, the equilibrium concentration of the $\mathrm{C}_{2} \mathrm{H}_{6}$ can definitely be increased by:

1 increasing temperature and decreasing pressure
2 decreasing temperature and increasing pressure
3 increasing temperature and pressure both
4 decreasing temperature and pressure both
Chemical Equilibrium

229200 When pressure is applied to the equilibrium system ice $\rightleftharpoons$ water. Which of the following phenomenon will happen?

1 More ice will be formed
2 Water will evaporate
3 More water will be formed
4 Equilibrium will not be formed
Chemical Equilibrium

229204 Reaction $\mathrm{BaO}_{2}(\mathrm{~s})$ BaO(s) $+\mathbf{O}_{\mathbf{2}}(\mathrm{g}) ; \Delta \mathbf{H}=$ + ve. In equilibrium condition pressure of $\mathrm{O}_{2}$ depends on

1 Increase mass of $\mathrm{BaO}_{2}$
2 Increase mass of $\mathrm{BaO}$
3 Increase temperature on equilibrium
4 Increase mall of $\mathrm{BaO}_{2}$ and $\mathrm{BaO}$ both
Chemical Equilibrium

229205 In the reaction
$\mathrm{O}_{2}(\mathrm{~g})+\mathrm{N}_{2}(\mathrm{~g}) \rightleftharpoons 2 \mathrm{NO}(\mathrm{g}), \Delta \mathrm{H}=180 \mathrm{KJ} \text {. }$

1 Increasing concentration of $\mathrm{N}_{2}$
2 Increase in pressure
3 Increase in temperature
4 Decrease in temperature
Chemical Equilibrium

229208 The equilibrium will be shifted in the opposite direction if
$\mathrm{PCl}_{3}(\mathrm{~g})+\mathrm{Cl}_{2}(\mathrm{~g}) \rightleftharpoons \mathrm{PCl}_{5} \text { (g) }$

1 $\mathrm{PCl}_{3}$ is added
2 Helium gas is added
3 Catalyst is added
4 Pressure is reduced
Chemical Equilibrium

229194 For the gaseous reaction
$\mathrm{C}_{2} \mathrm{H}_{4}+\mathrm{H}_{2} \rightleftharpoons \mathrm{C}_{2} \mathrm{H}_{6}, \Delta \mathrm{H}=-130 \mathrm{kjmol}^{-1}$ carried in a closed vessel, the equilibrium concentration of the $\mathrm{C}_{2} \mathrm{H}_{6}$ can definitely be increased by:

1 increasing temperature and decreasing pressure
2 decreasing temperature and increasing pressure
3 increasing temperature and pressure both
4 decreasing temperature and pressure both
Chemical Equilibrium

229200 When pressure is applied to the equilibrium system ice $\rightleftharpoons$ water. Which of the following phenomenon will happen?

1 More ice will be formed
2 Water will evaporate
3 More water will be formed
4 Equilibrium will not be formed
Chemical Equilibrium

229204 Reaction $\mathrm{BaO}_{2}(\mathrm{~s})$ BaO(s) $+\mathbf{O}_{\mathbf{2}}(\mathrm{g}) ; \Delta \mathbf{H}=$ + ve. In equilibrium condition pressure of $\mathrm{O}_{2}$ depends on

1 Increase mass of $\mathrm{BaO}_{2}$
2 Increase mass of $\mathrm{BaO}$
3 Increase temperature on equilibrium
4 Increase mall of $\mathrm{BaO}_{2}$ and $\mathrm{BaO}$ both
Chemical Equilibrium

229205 In the reaction
$\mathrm{O}_{2}(\mathrm{~g})+\mathrm{N}_{2}(\mathrm{~g}) \rightleftharpoons 2 \mathrm{NO}(\mathrm{g}), \Delta \mathrm{H}=180 \mathrm{KJ} \text {. }$

1 Increasing concentration of $\mathrm{N}_{2}$
2 Increase in pressure
3 Increase in temperature
4 Decrease in temperature
Chemical Equilibrium

229208 The equilibrium will be shifted in the opposite direction if
$\mathrm{PCl}_{3}(\mathrm{~g})+\mathrm{Cl}_{2}(\mathrm{~g}) \rightleftharpoons \mathrm{PCl}_{5} \text { (g) }$

1 $\mathrm{PCl}_{3}$ is added
2 Helium gas is added
3 Catalyst is added
4 Pressure is reduced