Gaseous Equilibrium and Le Chatelier's Principle

The video tutorial explains Le Chatelier's Principle and its application in determining the effects of changes in concentration, pressure, and temperature on chemical equilibrium. It provides examples and graphical analysis to illustrate how systems respond to these changes, aiming to restore equilibrium by opposing the change.

What does Le Chatelier's Principle state about a system in equilibrium when a change is applied?

• The system will accelerate the change.

• The system will adjust to minimize the change.

• The system will remain unchanged.

• The system will stop reacting.

In a chemical equilibrium, what happens when the concentration of a reactant is increased?

• The system stops reacting.

• The system favors the reverse reaction.

• The system favors the forward reaction.

• The system remains unchanged.

How does a decrease in pressure affect a gaseous equilibrium system?

• The system favors the side with more gas molecules.

• The system stops reacting.

• The system favors the side with fewer gas molecules.

• The system remains unchanged.

What is the primary factor to consider when analyzing pressure changes in a gaseous equilibrium?

• Number of solid particles

• Number of liquid particles

• Number of gas particles

• Number of aqueous particles

What is the effect of increasing temperature on an exothermic reaction at equilibrium?

• The system stops reacting.

• The system remains unchanged.

• The system favors the reverse reaction.

• The system favors the forward reaction.

Which type of reaction is favored when the temperature is decreased in an endothermic reaction?

• Both reactions are equally favored

• Endothermic reaction

• Exothermic reaction

• No reaction is favored

In the context of Le Chatelier's Principle, what does a decrease in temperature favor?

• Endothermic reaction

• Exothermic reaction

• No reaction is favored

• Both reactions are equally favored

On a graph, what does a spike in the concentration of one reactant indicate?

• A change in pressure

• A change in concentration

• A change in temperature

• No change in the system

If all reactants and products show a spike on a graph, what factor was likely changed?

• Pressure

• No factor was changed

• Temperature

• Concentration

What does a steady increase or decrease in a graph's line indicate about the factor changed?

• Concentration was changed

• No factor was changed

• Pressure was changed

• Temperature was changed