Equilibrium Shifts and Le Chatelier's Principle

The video tutorial explains how various factors affect chemical equilibrium. It covers the impact of adding or removing reactants and products, changes in volume and pressure, the addition of inert gases, the role of catalysts, and temperature changes. The tutorial uses Le Chatelier's principle to predict the direction of equilibrium shifts and discusses how only temperature changes can alter the equilibrium constant in exothermic reactions.

What is the main product formed when carbon monoxide reacts with hydrogen gas?

• Butane

• Propane

• Methanol

• Ethanol

According to Le Chatelier's Principle, what happens to the equilibrium when hydrogen gas is added?

• Shifts to the right

• Equilibrium is destroyed

• Shifts to the left

• No shift

If methanol is removed from the reaction, in which direction will the equilibrium shift?

• To the left

• To the right

• Equilibrium is destroyed

• No shift

What happens to the equilibrium when the volume of the reaction container is increased?

• Shifts to the left

• Shifts to the right

• No shift

• Equilibrium is destroyed

How does adding an inert gas like neon affect the equilibrium of the reaction?

• No shift

• Equilibrium is destroyed

• Shifts to the right

• Shifts to the left

What is the effect of adding a catalyst to a reaction at equilibrium?

• Shifts to the left

• Shifts to the right

• No shift

• Equilibrium is destroyed

In an exothermic reaction, how does decreasing the temperature affect the equilibrium?

• Equilibrium is destroyed

• No shift

• Shifts to the right

• Shifts to the left

What happens to the equilibrium constant when the temperature is lowered in an exothermic reaction?

• Increases

• Decreases

• Remains the same

• Becomes zero

Which of the following changes does not affect the equilibrium constant?

• Adding a catalyst

• Changing concentration

• Changing pressure

• Changing temperature

What is the only factor that changes the equilibrium constant in a reaction?

• Temperature

• Volume

• Pressure

• Concentration