Catalysts and Equilibrium

Question 1

What is the main effect of a catalyst on a reversible reaction?

• AIt changes the equilibrium position
• BIt increases the rates of forward and backward reactions
• CIt stops the reverse reaction
• DIt changes the equilibrium constant

Question 2

Does a catalyst change the position of equilibrium?

• AYes
• BNo
• COnly for gases
• DOnly for solids

Question 3

What does a catalyst do to the time required to reach equilibrium?

• AIt increases the time
• BIt decreases the time
• CIt prevents equilibrium
• DIt has no effect on reaction rates

Question 4

Why does a catalyst not change the equilibrium position?

• AIt increases only the forward reaction rate
• BIt increases only the backward reaction rate
• CIt increases both forward and backward reaction rates
• DIt stops both reactions

Question 5

At equilibrium what happens to the forward and backward reaction rates?

• AForward rate is greater
• BBackward rate is greater
• CThey are equal
• DBoth reactions stop