Starter Activity Quiz - "Chemical Equilibrium"

In a reversible reaction at equilibrium, increasing the concentration of a reactant will:

• Shift the equilibrium towards the products

• Shift the equilibrium towards the reactants

• Have no effect on the equilibrium position

• Depend on the specific reaction conditions

Which of the following changes would increase the yield of products in an exothermic reaction at equilibrium?

• Decreasing the temperature

• Adding a catalyst

• Decreasing the pressure

• Removing some of the reactants

What happens to the equilibrium position if an inert gas is added to a system at constant volume?

• The equilibrium shifts towards the side with more moles of gas

• The equilibrium shifts towards the side with fewer moles of gas

• There is no effect on the equilibrium position

• 1. The equilibrium becomes unstable

If the volume of a system at equilibrium is increased, what effect will this have on the equilibrium position in terms of pressure?

• Increase in pressure

• Decrease in pressure

• No change in pressure

• Pressure change depends on the specific reaction conditions

For an endothermic reaction at equilibrium, which of the following changes will shift the equilibrium position towards the products?

• Decreasing the temperature

• Increasing the temperature

• Increasing the concentration of the products

• Removing some of the reactants

In a reversible reaction at equilibrium, how would increasing the pressure affect the equilibrium position if the total number of moles of gas on the reactant side equals the total number of moles of gas on the product side?

• The equilibrium will shift towards the side with fewer moles of gas

• The equilibrium will shift towards the side with more moles of gas

• There will be no effect on the equilibrium position

• The equilibrium will shift towards the side with higher pressure

If a catalyst is added to a system at equilibrium, what effect does it have on the rate of the forward and reverse reactions?

• Both rates increase

• Both rates decrease

• Rate of forward reaction increases, rate of reverse reaction decreases

• Rate of forward reaction decreases, rate of reverse reaction increases