Le Chatelier’s Principle and Applications
CHXI07:EQUILIBRIUM

314801 In the system, \({\text{A}}{{\text{B}}_{{\text{(s)}}}} \rightleftharpoons {{\text{A}}_{{\text{(g)}}}}{\text{ + }}{{\text{B}}_{{\text{(g)}}}}\), doubling the quantity of \({\text{A}}{{\text{B}}_{\left( {\text{s}} \right)}}\) will

1 Increase the amount of A to double its value
2 Increase the amount of B to double its value
3 Increase the amounts of both A and B to double their values
4 Causes no change in the amounts of A and B
CHXI07:EQUILIBRIUM

314802 When \(\mathrm{NaNO}_{3}\) is heated in a closed vessel, oxygen is liberated and \(\mathrm{NaNO}_{2}\) is left behind at equilibrium

1 Addition of \(\mathrm{NaNO}_{2}\) favours forward reaction
2 Addition of \(\mathrm{NaNO}_{3}\) favours forward reaction
3 Increase in temperature favours forward reaction
4 Both addition of \(\mathrm{NaNO}_{3}\) and increase in temperature favour forward reaction
CHXI07:EQUILIBRIUM

314803 The following reaction occurs in the Blast Furnace where iron ore is reduced to iron metal: \({\text{F}}{{\text{e}}_{\text{2}}}{{\text{O}}_{\text{3}}}{\text{(s) + 3CO(g)}} \rightleftharpoons {\text{2Fe(l) + 3C}}{{\text{O}}_{\text{2}}}{\text{(g)}}\)
Using the Le Chatelier's principle, predict which one of the following will not distrub the equilibrium?

1 Removal of \(\mathrm{CO}\)
2 Removal of \(\mathrm{CO}_{2}\)
3 Addition of \(\mathrm{CO}_{2}\)
4 Addition of \(\mathrm{Fe}_{2} \mathrm{O}_{3}\)
CHXI07:EQUILIBRIUM

314804 Given the equation, \({\text{AgC}}{{\text{l}}_{{\text{(s)}}}} \rightleftharpoons {\text{Ag}}_{{\text{(aq)}}}^{\text{ + }}{\text{ + Cl}}_{{\text{(aq)}}}^{\text{ - }}\)
As \(\mathrm{NaCl}(\mathrm{s})\) dissolves in the solution, temperature remaining constant, the \({\text{A}}{{\text{g}}^{\text{ + }}}{\text{(aq)}}\) concentration will

1 Decrease as the amount of \({\text{AgCl(s)}}\) decreases
2 Decrease as the amount of \({\text{AgCl(s)}}\) increases
3 Increase as the amount of \({\text{AgCl(s)}}\) decreases
4 Increase as the amount of \({\text{AgCl(s)}}\) increases
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CHXI07:EQUILIBRIUM

314801 In the system, \({\text{A}}{{\text{B}}_{{\text{(s)}}}} \rightleftharpoons {{\text{A}}_{{\text{(g)}}}}{\text{ + }}{{\text{B}}_{{\text{(g)}}}}\), doubling the quantity of \({\text{A}}{{\text{B}}_{\left( {\text{s}} \right)}}\) will

1 Increase the amount of A to double its value
2 Increase the amount of B to double its value
3 Increase the amounts of both A and B to double their values
4 Causes no change in the amounts of A and B
CHXI07:EQUILIBRIUM

314802 When \(\mathrm{NaNO}_{3}\) is heated in a closed vessel, oxygen is liberated and \(\mathrm{NaNO}_{2}\) is left behind at equilibrium

1 Addition of \(\mathrm{NaNO}_{2}\) favours forward reaction
2 Addition of \(\mathrm{NaNO}_{3}\) favours forward reaction
3 Increase in temperature favours forward reaction
4 Both addition of \(\mathrm{NaNO}_{3}\) and increase in temperature favour forward reaction
CHXI07:EQUILIBRIUM

314803 The following reaction occurs in the Blast Furnace where iron ore is reduced to iron metal: \({\text{F}}{{\text{e}}_{\text{2}}}{{\text{O}}_{\text{3}}}{\text{(s) + 3CO(g)}} \rightleftharpoons {\text{2Fe(l) + 3C}}{{\text{O}}_{\text{2}}}{\text{(g)}}\)
Using the Le Chatelier's principle, predict which one of the following will not distrub the equilibrium?

1 Removal of \(\mathrm{CO}\)
2 Removal of \(\mathrm{CO}_{2}\)
3 Addition of \(\mathrm{CO}_{2}\)
4 Addition of \(\mathrm{Fe}_{2} \mathrm{O}_{3}\)
CHXI07:EQUILIBRIUM

314804 Given the equation, \({\text{AgC}}{{\text{l}}_{{\text{(s)}}}} \rightleftharpoons {\text{Ag}}_{{\text{(aq)}}}^{\text{ + }}{\text{ + Cl}}_{{\text{(aq)}}}^{\text{ - }}\)
As \(\mathrm{NaCl}(\mathrm{s})\) dissolves in the solution, temperature remaining constant, the \({\text{A}}{{\text{g}}^{\text{ + }}}{\text{(aq)}}\) concentration will

1 Decrease as the amount of \({\text{AgCl(s)}}\) decreases
2 Decrease as the amount of \({\text{AgCl(s)}}\) increases
3 Increase as the amount of \({\text{AgCl(s)}}\) decreases
4 Increase as the amount of \({\text{AgCl(s)}}\) increases
CHXI07:EQUILIBRIUM

314801 In the system, \({\text{A}}{{\text{B}}_{{\text{(s)}}}} \rightleftharpoons {{\text{A}}_{{\text{(g)}}}}{\text{ + }}{{\text{B}}_{{\text{(g)}}}}\), doubling the quantity of \({\text{A}}{{\text{B}}_{\left( {\text{s}} \right)}}\) will

1 Increase the amount of A to double its value
2 Increase the amount of B to double its value
3 Increase the amounts of both A and B to double their values
4 Causes no change in the amounts of A and B
CHXI07:EQUILIBRIUM

314802 When \(\mathrm{NaNO}_{3}\) is heated in a closed vessel, oxygen is liberated and \(\mathrm{NaNO}_{2}\) is left behind at equilibrium

1 Addition of \(\mathrm{NaNO}_{2}\) favours forward reaction
2 Addition of \(\mathrm{NaNO}_{3}\) favours forward reaction
3 Increase in temperature favours forward reaction
4 Both addition of \(\mathrm{NaNO}_{3}\) and increase in temperature favour forward reaction
CHXI07:EQUILIBRIUM

314803 The following reaction occurs in the Blast Furnace where iron ore is reduced to iron metal: \({\text{F}}{{\text{e}}_{\text{2}}}{{\text{O}}_{\text{3}}}{\text{(s) + 3CO(g)}} \rightleftharpoons {\text{2Fe(l) + 3C}}{{\text{O}}_{\text{2}}}{\text{(g)}}\)
Using the Le Chatelier's principle, predict which one of the following will not distrub the equilibrium?

1 Removal of \(\mathrm{CO}\)
2 Removal of \(\mathrm{CO}_{2}\)
3 Addition of \(\mathrm{CO}_{2}\)
4 Addition of \(\mathrm{Fe}_{2} \mathrm{O}_{3}\)
CHXI07:EQUILIBRIUM

314804 Given the equation, \({\text{AgC}}{{\text{l}}_{{\text{(s)}}}} \rightleftharpoons {\text{Ag}}_{{\text{(aq)}}}^{\text{ + }}{\text{ + Cl}}_{{\text{(aq)}}}^{\text{ - }}\)
As \(\mathrm{NaCl}(\mathrm{s})\) dissolves in the solution, temperature remaining constant, the \({\text{A}}{{\text{g}}^{\text{ + }}}{\text{(aq)}}\) concentration will

1 Decrease as the amount of \({\text{AgCl(s)}}\) decreases
2 Decrease as the amount of \({\text{AgCl(s)}}\) increases
3 Increase as the amount of \({\text{AgCl(s)}}\) decreases
4 Increase as the amount of \({\text{AgCl(s)}}\) increases
CHXI07:EQUILIBRIUM

314801 In the system, \({\text{A}}{{\text{B}}_{{\text{(s)}}}} \rightleftharpoons {{\text{A}}_{{\text{(g)}}}}{\text{ + }}{{\text{B}}_{{\text{(g)}}}}\), doubling the quantity of \({\text{A}}{{\text{B}}_{\left( {\text{s}} \right)}}\) will

1 Increase the amount of A to double its value
2 Increase the amount of B to double its value
3 Increase the amounts of both A and B to double their values
4 Causes no change in the amounts of A and B
CHXI07:EQUILIBRIUM

314802 When \(\mathrm{NaNO}_{3}\) is heated in a closed vessel, oxygen is liberated and \(\mathrm{NaNO}_{2}\) is left behind at equilibrium

1 Addition of \(\mathrm{NaNO}_{2}\) favours forward reaction
2 Addition of \(\mathrm{NaNO}_{3}\) favours forward reaction
3 Increase in temperature favours forward reaction
4 Both addition of \(\mathrm{NaNO}_{3}\) and increase in temperature favour forward reaction
CHXI07:EQUILIBRIUM

314803 The following reaction occurs in the Blast Furnace where iron ore is reduced to iron metal: \({\text{F}}{{\text{e}}_{\text{2}}}{{\text{O}}_{\text{3}}}{\text{(s) + 3CO(g)}} \rightleftharpoons {\text{2Fe(l) + 3C}}{{\text{O}}_{\text{2}}}{\text{(g)}}\)
Using the Le Chatelier's principle, predict which one of the following will not distrub the equilibrium?

1 Removal of \(\mathrm{CO}\)
2 Removal of \(\mathrm{CO}_{2}\)
3 Addition of \(\mathrm{CO}_{2}\)
4 Addition of \(\mathrm{Fe}_{2} \mathrm{O}_{3}\)
CHXI07:EQUILIBRIUM

314804 Given the equation, \({\text{AgC}}{{\text{l}}_{{\text{(s)}}}} \rightleftharpoons {\text{Ag}}_{{\text{(aq)}}}^{\text{ + }}{\text{ + Cl}}_{{\text{(aq)}}}^{\text{ - }}\)
As \(\mathrm{NaCl}(\mathrm{s})\) dissolves in the solution, temperature remaining constant, the \({\text{A}}{{\text{g}}^{\text{ + }}}{\text{(aq)}}\) concentration will

1 Decrease as the amount of \({\text{AgCl(s)}}\) decreases
2 Decrease as the amount of \({\text{AgCl(s)}}\) increases
3 Increase as the amount of \({\text{AgCl(s)}}\) decreases
4 Increase as the amount of \({\text{AgCl(s)}}\) increases