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

229156 The yield of the products in the reaction,
$\mathrm{A}_{2}(\mathrm{~g})+2 \mathrm{~B}(\mathrm{~g}) \rightleftharpoons \mathrm{C}(\mathrm{g})+\mathrm{Q}(\mathrm{kJ})$
would be higher at

1 high temperature and high pressure
2 high temperature and low pressure
3 low temperature and high pressure
4 low temperature and low pressure
Chemical Equilibrium

229157 The supply of oxygen to tissues by blood, can be explained by

1 Le-Chatelier's principle
2 Boyle's law
3 Charis' law
4 Dalton's law
Chemical Equilibrium

229158 $\mathrm{CaCO}_{3}(\mathrm{~s}) \rightarrow \mathrm{CaO}(\mathrm{s})+\mathrm{CO}_{2}(\mathrm{~g})$ at constant temp, the pressure will increase if:

1 Vol. of container increase
2 Temperature increases
3 Concentration of $\mathrm{CaO}$ increases.
4 Concentration of $\mathrm{CaCO}_{3}$ increases.
Chemical Equilibrium

229160 In a reaction $A+B \rightleftharpoons C+D$, Le Chatelier's principle asserts that an equilibrium between $A$ and $B$ producing $C$ and $D$ can be shifted towards $C$ and $D$ by
(i) increasing the concentration of $\mathrm{A}$ or $\mathrm{B}$
(ii) increasing the concentration of $\mathrm{C}$ or $\mathrm{D}$
(iii) decreasing the concentration of $\mathrm{A}$ or $\mathrm{B}$

1 (ii) only
2 Both (i) and (ii)
3 (iii) only
4 (i) only
Chemical Equilibrium

229161 A reaction has both $\Delta H$ and $\Delta S-v e$. The rate of reaction

1 Increases with increases in temperature
2 Cannot be predicated for change in temperature
3 Increases with decreases in temperature
4 Remains unaffected by change in temperature
Chemical Equilibrium

229156 The yield of the products in the reaction,
$\mathrm{A}_{2}(\mathrm{~g})+2 \mathrm{~B}(\mathrm{~g}) \rightleftharpoons \mathrm{C}(\mathrm{g})+\mathrm{Q}(\mathrm{kJ})$
would be higher at

1 high temperature and high pressure
2 high temperature and low pressure
3 low temperature and high pressure
4 low temperature and low pressure
Chemical Equilibrium

229157 The supply of oxygen to tissues by blood, can be explained by

1 Le-Chatelier's principle
2 Boyle's law
3 Charis' law
4 Dalton's law
Chemical Equilibrium

229158 $\mathrm{CaCO}_{3}(\mathrm{~s}) \rightarrow \mathrm{CaO}(\mathrm{s})+\mathrm{CO}_{2}(\mathrm{~g})$ at constant temp, the pressure will increase if:

1 Vol. of container increase
2 Temperature increases
3 Concentration of $\mathrm{CaO}$ increases.
4 Concentration of $\mathrm{CaCO}_{3}$ increases.
Chemical Equilibrium

229160 In a reaction $A+B \rightleftharpoons C+D$, Le Chatelier's principle asserts that an equilibrium between $A$ and $B$ producing $C$ and $D$ can be shifted towards $C$ and $D$ by
(i) increasing the concentration of $\mathrm{A}$ or $\mathrm{B}$
(ii) increasing the concentration of $\mathrm{C}$ or $\mathrm{D}$
(iii) decreasing the concentration of $\mathrm{A}$ or $\mathrm{B}$

1 (ii) only
2 Both (i) and (ii)
3 (iii) only
4 (i) only
Chemical Equilibrium

229161 A reaction has both $\Delta H$ and $\Delta S-v e$. The rate of reaction

1 Increases with increases in temperature
2 Cannot be predicated for change in temperature
3 Increases with decreases in temperature
4 Remains unaffected by change in temperature
Chemical Equilibrium

229156 The yield of the products in the reaction,
$\mathrm{A}_{2}(\mathrm{~g})+2 \mathrm{~B}(\mathrm{~g}) \rightleftharpoons \mathrm{C}(\mathrm{g})+\mathrm{Q}(\mathrm{kJ})$
would be higher at

1 high temperature and high pressure
2 high temperature and low pressure
3 low temperature and high pressure
4 low temperature and low pressure
Chemical Equilibrium

229157 The supply of oxygen to tissues by blood, can be explained by

1 Le-Chatelier's principle
2 Boyle's law
3 Charis' law
4 Dalton's law
Chemical Equilibrium

229158 $\mathrm{CaCO}_{3}(\mathrm{~s}) \rightarrow \mathrm{CaO}(\mathrm{s})+\mathrm{CO}_{2}(\mathrm{~g})$ at constant temp, the pressure will increase if:

1 Vol. of container increase
2 Temperature increases
3 Concentration of $\mathrm{CaO}$ increases.
4 Concentration of $\mathrm{CaCO}_{3}$ increases.
Chemical Equilibrium

229160 In a reaction $A+B \rightleftharpoons C+D$, Le Chatelier's principle asserts that an equilibrium between $A$ and $B$ producing $C$ and $D$ can be shifted towards $C$ and $D$ by
(i) increasing the concentration of $\mathrm{A}$ or $\mathrm{B}$
(ii) increasing the concentration of $\mathrm{C}$ or $\mathrm{D}$
(iii) decreasing the concentration of $\mathrm{A}$ or $\mathrm{B}$

1 (ii) only
2 Both (i) and (ii)
3 (iii) only
4 (i) only
Chemical Equilibrium

229161 A reaction has both $\Delta H$ and $\Delta S-v e$. The rate of reaction

1 Increases with increases in temperature
2 Cannot be predicated for change in temperature
3 Increases with decreases in temperature
4 Remains unaffected by change in temperature
Chemical Equilibrium

229156 The yield of the products in the reaction,
$\mathrm{A}_{2}(\mathrm{~g})+2 \mathrm{~B}(\mathrm{~g}) \rightleftharpoons \mathrm{C}(\mathrm{g})+\mathrm{Q}(\mathrm{kJ})$
would be higher at

1 high temperature and high pressure
2 high temperature and low pressure
3 low temperature and high pressure
4 low temperature and low pressure
Chemical Equilibrium

229157 The supply of oxygen to tissues by blood, can be explained by

1 Le-Chatelier's principle
2 Boyle's law
3 Charis' law
4 Dalton's law
Chemical Equilibrium

229158 $\mathrm{CaCO}_{3}(\mathrm{~s}) \rightarrow \mathrm{CaO}(\mathrm{s})+\mathrm{CO}_{2}(\mathrm{~g})$ at constant temp, the pressure will increase if:

1 Vol. of container increase
2 Temperature increases
3 Concentration of $\mathrm{CaO}$ increases.
4 Concentration of $\mathrm{CaCO}_{3}$ increases.
Chemical Equilibrium

229160 In a reaction $A+B \rightleftharpoons C+D$, Le Chatelier's principle asserts that an equilibrium between $A$ and $B$ producing $C$ and $D$ can be shifted towards $C$ and $D$ by
(i) increasing the concentration of $\mathrm{A}$ or $\mathrm{B}$
(ii) increasing the concentration of $\mathrm{C}$ or $\mathrm{D}$
(iii) decreasing the concentration of $\mathrm{A}$ or $\mathrm{B}$

1 (ii) only
2 Both (i) and (ii)
3 (iii) only
4 (i) only
Chemical Equilibrium

229161 A reaction has both $\Delta H$ and $\Delta S-v e$. The rate of reaction

1 Increases with increases in temperature
2 Cannot be predicated for change in temperature
3 Increases with decreases in temperature
4 Remains unaffected by change in temperature
Chemical Equilibrium

229156 The yield of the products in the reaction,
$\mathrm{A}_{2}(\mathrm{~g})+2 \mathrm{~B}(\mathrm{~g}) \rightleftharpoons \mathrm{C}(\mathrm{g})+\mathrm{Q}(\mathrm{kJ})$
would be higher at

1 high temperature and high pressure
2 high temperature and low pressure
3 low temperature and high pressure
4 low temperature and low pressure
Chemical Equilibrium

229157 The supply of oxygen to tissues by blood, can be explained by

1 Le-Chatelier's principle
2 Boyle's law
3 Charis' law
4 Dalton's law
Chemical Equilibrium

229158 $\mathrm{CaCO}_{3}(\mathrm{~s}) \rightarrow \mathrm{CaO}(\mathrm{s})+\mathrm{CO}_{2}(\mathrm{~g})$ at constant temp, the pressure will increase if:

1 Vol. of container increase
2 Temperature increases
3 Concentration of $\mathrm{CaO}$ increases.
4 Concentration of $\mathrm{CaCO}_{3}$ increases.
Chemical Equilibrium

229160 In a reaction $A+B \rightleftharpoons C+D$, Le Chatelier's principle asserts that an equilibrium between $A$ and $B$ producing $C$ and $D$ can be shifted towards $C$ and $D$ by
(i) increasing the concentration of $\mathrm{A}$ or $\mathrm{B}$
(ii) increasing the concentration of $\mathrm{C}$ or $\mathrm{D}$
(iii) decreasing the concentration of $\mathrm{A}$ or $\mathrm{B}$

1 (ii) only
2 Both (i) and (ii)
3 (iii) only
4 (i) only
Chemical Equilibrium

229161 A reaction has both $\Delta H$ and $\Delta S-v e$. The rate of reaction

1 Increases with increases in temperature
2 Cannot be predicated for change in temperature
3 Increases with decreases in temperature
4 Remains unaffected by change in temperature