Equilibrium Position and Catalysts

This video tutorial explains how dynamic equilibrium shifts in response to changes in concentration, pressure, and temperature. It covers the principles of Le Chatelier and the role of catalysts in reaching equilibrium faster. The tutorial provides detailed explanations and examples to help understand these concepts.

What happens to the equilibrium position when the concentration of a reactant is increased?

• It remains unchanged.

• It shifts to the left.

• It depends on the temperature.

• It shifts to the right.

If the concentration of a product is decreased, in which direction will the equilibrium shift?

• It will not shift

• It depends on the pressure

• To the right

• To the left

How does an increase in pressure affect the equilibrium position in a gaseous reaction?

• Shifts to the side with more moles

• Shifts to the side with fewer moles

• Depends on the catalyst

• No effect

What is the effect of decreasing pressure on the equilibrium position?

• Shifts to the side with more moles

• Shifts to the side with fewer moles

• No effect

• Depends on the temperature

What should you consider when the volume of a reaction vessel changes?

• It is a change in pressure

• It is a change in catalyst

• It is a change in concentration

• It is a change in temperature

In which direction does the equilibrium shift when the temperature is increased?

• In the endothermic direction

• It depends on the pressure

• In the exothermic direction

• It remains unchanged

What happens to the equilibrium position when the temperature is decreased?

• Depends on the concentration

• No shift occurs

• Shifts in the endothermic direction

• Shifts in the exothermic direction

What is the role of a catalyst in a chemical equilibrium?

• It speeds up the attainment of equilibrium

• It shifts the equilibrium to the left

• It has no effect on the reaction

• It shifts the equilibrium to the right

Does a catalyst affect the position of equilibrium?

• Yes, it depends on the temperature

• No, it does not affect the position

• Yes, it shifts it to the left

• Yes, it shifts it to the right

How does a catalyst influence the rate of a reaction?

• It increases the rate of both forward and backward reactions equally

• It decreases the rate

• It increases the rate of the forward reaction only

• It has no effect on the rate