Equilibrium Shifts and Concentration Changes

The video tutorial explains Le Chatelier's principle, focusing on how changes in concentration, temperature, and pressure affect chemical equilibrium. It provides examples of how adding substances like Na2SO4, BaO, and BaSO4 can shift the equilibrium to the left or right. The tutorial also discusses the impact of temperature changes on equilibrium, emphasizing the need to resolve stress in the system by shifting the reaction direction. The video aims to help students understand the dynamic nature of chemical reactions and how external changes can influence the balance of reactants and products.

What is the primary focus of Le Chatelier's Principle?

• To predict the color change in reactions

• To determine the speed of a reaction

• To calculate the energy released in a reaction

• To understand how equilibrium shifts in response to changes

When Na2SO4 is added to the system, which direction does the equilibrium shift?

• Equilibrium is destroyed

• To the right, towards the products

• To the left, towards the reactants

• No shift occurs

What happens to the concentration of SO4 when Na2SO4 is added?

• It decreases

• It increases

• It remains the same

• It fluctuates

How does the addition of BaO affect the equilibrium?

• Equilibrium is destroyed

• No change

• Shifts to the right

• Shifts to the left

What is the result of adding BaSO4 to the system?

• Equilibrium is destroyed

• No change in equilibrium

• Equilibrium shifts to the left

• Equilibrium shifts to the right

Which factor is represented as energy in the equilibrium equation?

• Pressure

• Volume

• Temperature

• Concentration

Increasing the temperature of the system causes the concentration of which component to increase?

• Inert gases

• Catalyst

• Products

• Reactants

What happens to the equilibrium when the temperature is increased?

• Shifts to the left

• Shifts to the right

• Equilibrium is destroyed

• No change

How can you make the equilibrium shift to the right?

• Increase the concentration of products

• Decrease the concentration of reactants

• Decrease the temperature

• Increase the concentration of reactants

Which change will cause the equilibrium to shift to the left?

• Increase the concentration of products

• Decrease the concentration of products

• Decrease the concentration of reactants

• Increase the temperature