Question 1

What happens to the equilibrium position of an exothermic reaction when you remove heat?

Accepted Answer

Removing heat from an exothermic reaction shifts the equilibrium to the right, favoring the formation of products, as the system tries to produce more heat to counteract the change.

Question 2

What happens to the equilibrium position of an exothermic reaction when you add heat?

Accepted Answer

Adding heat to an exothermic reaction shifts the equilibrium position to the left, favoring the reactants, according to Le Chatelier's principle.

Question 3

Which compound below is the most soluble in water based on its  value?

Accepted Answer

The answer of Which compound below is the most soluble...

Question 4

Which of the following equilibrium systems will shift to the right (towards products)when pressure is increased.

Accepted Answer

The answer of Which of the following equilibrium systems will...

Question 5

For the reaction ,what happens to the equilibrium position if the amount of solid silver sulfide is doubled?

Accepted Answer

The answer of For the reaction ,what happens to the...

Question 6

Which compound below is the most soluble in water based on its  value?

Accepted Answer

The answer of Which compound below is the most soluble...

Question 7

What happens to the equilibrium position of an endothermic reaction when you add heat?

Accepted Answer

Adding heat to an endothermic reaction will shift the equilibrium to the right, favoring the forward reaction which consumes heat. According to Le Chatelier's principle, an increase in temperature will cause a system to shift in the direction that absorbs heat. Therefore, adding heat to an endothermic reaction will favor the endothermic reaction, causing the equilibrium position to shift to the right.

Question 8

Consider the following endothermic equilibrium reaction: Fe₂O₃(s)+ 3H₂(g)⇌ 2Fe (s)+ 3 H₂O (g) Which of the following actions will result in a shift to the left (towards reactants)?

Accepted Answer

The answer of Consider the following endothermic equilibrium reaction: Fe₂O_3...

Question 9

For the reaction 
what happens to the equilibrium position if the volume decreases?

Accepted Answer

According to Le Chatelier's Principle, when the volume is decreased, the system will try to counteract the change by shifting the equilibrium position in the direction that produces fewer moles of gas. In this case, since there are four moles of gas on the left side of the reaction and only two on the right, the equilibrium will shift to the left, reducing the amount of gas and partially offsetting the volume decrease.

Question 10

For the reaction 
what happens to the equilibrium position if the pressure increases?

Accepted Answer

According to Le Chatelier's principle, when a stress is applied to a system at equilibrium, the system will shift in a way that minimizes the stress. In this case, an increase in pressure would be considered a stress. The reaction 11ec7869_d959_9b21_93e9_db690a227fb6_TB6110_11 has four moles of gas on the left side and two moles of gas on the right side of the equation. Therefore, an increase in pressure would cause the system to shift to the side with fewer moles of gas, which is the left side. Thus, the equilibrium position would shift to the left.

Question 11

For the reaction H₂ (g)+ Cl₂ (g)⇌ 2 HCl (g),what happens to the equilibrium position if the pressure increases?

Accepted Answer

The reaction involves equal moles of gas on both sides (1 mole of H2 and 1 mole of Cl2 react to form 2 moles of HCl). Therefore, increasing the pressure does not favor either side, and the equilibrium position does not shift.

Question 12

For the reaction 
what happens to the equilibrium position if the pressure decreases?

Accepted Answer

The answer of For the reaction 
what happens to the...

Question 13

Given the choice of adding ions of Mg ²⁺ (aq),Ca ²⁺(aq),Sr ²⁺ (aq)or Ba ²⁺ (aq)to a solution of carbonate ions,CO₃ ^2-,which choice would precipitate an insoluble carbonate compound first? Use the following data:

Accepted Answer

The answer of Given the choice of adding ions of...

Question 14

For the reaction ,what happens to the equilibrium position if the amount of silver ion is halved?

Accepted Answer

The answer of For the reaction ,what happens to the...

Question 15

Consider the reaction: Which of the following will cause a shift in the equilibrium to the right? 1.Add more N₂O 2.Remove O₂ 3.Remove N₂

Accepted Answer

The answer of Consider the reaction:

Which of the following...

Question 16

What is the molar solubility,(S),of FeS if the  for this substance?

Accepted Answer

The answer of What is the molar solubility,(S),of FeS if...

Question 17

What happens to the equilibrium position of an endothermic reaction when you remove heat?

Accepted Answer

An endothermic reaction absorbs heat, meaning heat is a reactant. If you remove heat from the reaction, the equilibrium will shift in the direction that produces heat, which is the left side of the equation. Therefore, the equilibrium position will shift to the left.

Question 18

Consider the reaction: Which of the following will cause a shift in the equilibrium to the left? 1.Remove N₂O 2.Remove O₂ 3.Add N₂

Accepted Answer

The answer of Consider the reaction:

Which of the following...

Question 19

For the reaction 
what happens to the equilibrium position if the volume increases?

Accepted Answer

The answer of For the reaction 
what happens to the...

Question 20

We have the following reaction at equilibrium in a flask, CaSO₄(s)⇌ Ca²⁺(aq)+ SO₄²⁺(aq) What will happen to [Ca²⁺] if additional CaSO₄ is added to the flask?

Accepted Answer

The concentration of Ca²⁺ will not change because CaSO₄ is a solid and adding more solid does not affect the equilibrium concentration of the ions in solution.

Quiz 15: Chemical Equilibrium

What happens to the equilibrium position of an exothermic reaction when you remove heat?

What happens to the equilibrium position of an exothermic reaction when you add heat?

Which compound below is the most soluble in water based on its value?

Which of the following equilibrium systems will shift to the right (towards products) when pressure is increased.

For the reaction ,what happens to the equilibrium position if the amount of solid silver sulfide is doubled?

Which compound below is the most soluble in water based on its value?

What happens to the equilibrium position of an endothermic reaction when you add heat?

Consider the following endothermic equilibrium reaction: Fe₂O₃(s) + 3H₂(g) ⇌ 2Fe (s) + 3 H₂O (g) Which of the following actions will result in a shift to the left (towards reactants) ?

For the reaction what happens to the equilibrium position if the volume decreases?

For the reaction what happens to the equilibrium position if the pressure increases?

For the reaction H₂ (g) + Cl₂ (g) ⇌ 2 HCl (g) ,what happens to the equilibrium position if the pressure increases?

For the reaction what happens to the equilibrium position if the pressure decreases?

Given the choice of adding ions of Mg ²⁺ (aq) ,Ca ²⁺(aq) ,Sr ²⁺ (aq) or Ba ²⁺ (aq) to a solution of carbonate ions,CO₃ ^2-,which choice would precipitate an insoluble carbonate compound first? Use the following data:

For the reaction ,what happens to the equilibrium position if the amount of silver ion is halved?

Consider the reaction: Which of the following will cause a shift in the equilibrium to the right? 1.Add more N₂O 2.Remove O₂ 3.Remove N₂

What is the molar solubility,(S) ,of FeS if the for this substance?

What happens to the equilibrium position of an endothermic reaction when you remove heat?

Consider the reaction: Which of the following will cause a shift in the equilibrium to the left? 1.Remove N₂O 2.Remove O₂ 3.Add N₂

For the reaction what happens to the equilibrium position if the volume increases?

We have the following reaction at equilibrium in a flask, CaSO₄(s) ⇌ Ca²⁺(aq) + SO₄²⁺(aq) What will happen to [Ca²⁺] if additional CaSO₄ is added to the flask?

Quiz 15: Chemical Equilibrium

What happens to the equilibrium position of an exothermic reaction when you remove heat?

What happens to the equilibrium position of an exothermic reaction when you add heat?

Which compound below is the most soluble in water based on its value?

Which of the following equilibrium systems will shift to the right (towards products) when pressure is increased.

For the reaction ,what happens to the equilibrium position if the amount of solid silver sulfide is doubled?

Which compound below is the most soluble in water based on its value?

What happens to the equilibrium position of an endothermic reaction when you add heat?

Consider the following endothermic equilibrium reaction: Fe2O3 (s) + 3H2 (g) ⇌ 2Fe (s) + 3 H2O (g) Which of the following actions will result in a shift to the left (towards reactants) ?

For the reaction what happens to the equilibrium position if the volume decreases?

For the reaction what happens to the equilibrium position if the pressure increases?

For the reaction H2 (g) + Cl2 (g) ⇌ 2 HCl (g) ,what happens to the equilibrium position if the pressure increases?

For the reaction what happens to the equilibrium position if the pressure decreases?

Given the choice of adding ions of Mg 2+ (aq) ,Ca 2+ (aq) ,Sr 2+ (aq) or Ba 2+ (aq) to a solution of carbonate ions,CO3 2-,which choice would precipitate an insoluble carbonate compound first? Use the following data:

For the reaction ,what happens to the equilibrium position if the amount of silver ion is halved?

Consider the reaction: Which of the following will cause a shift in the equilibrium to the right? 1.Add more N2O 2.Remove O2 3.Remove N2

What is the molar solubility,(S) ,of FeS if the for this substance?

What happens to the equilibrium position of an endothermic reaction when you remove heat?

Consider the reaction: Which of the following will cause a shift in the equilibrium to the left? 1.Remove N2O 2.Remove O2 3.Add N2

For the reaction what happens to the equilibrium position if the volume increases?

We have the following reaction at equilibrium in a flask, CaSO4(s) ⇌ Ca2+(aq) + SO42+(aq) What will happen to [Ca2+] if additional CaSO4 is added to the flask?

Consider the following endothermic equilibrium reaction: Fe₂O₃(s) + 3H₂(g) ⇌ 2Fe (s) + 3 H₂O (g) Which of the following actions will result in a shift to the left (towards reactants) ?

For the reaction H₂ (g) + Cl₂ (g) ⇌ 2 HCl (g) ,what happens to the equilibrium position if the pressure increases?

Given the choice of adding ions of Mg ²⁺ (aq) ,Ca ²⁺(aq) ,Sr ²⁺ (aq) or Ba ²⁺ (aq) to a solution of carbonate ions,CO₃ ^2-,which choice would precipitate an insoluble carbonate compound first? Use the following data:

Consider the reaction: Which of the following will cause a shift in the equilibrium to the right? 1.Add more N₂O 2.Remove O₂ 3.Remove N₂

Consider the reaction: Which of the following will cause a shift in the equilibrium to the left? 1.Remove N₂O 2.Remove O₂ 3.Add N₂

We have the following reaction at equilibrium in a flask, CaSO₄(s) ⇌ Ca²⁺(aq) + SO₄²⁺(aq) What will happen to [Ca²⁺] if additional CaSO₄ is added to the flask?