Equilibrium Expressions

Which of the following is FALSE regarding catalysts?

• Catalysts increase the rate of reaction

• Catalysts alter the transition state

• Catalysts increase the average kinetic energy of the reactant molecules

• Catalysts increase the activation energy

At equilibrium, the concentrations of the products and reactants are constant over time.

• True
• False

At equilibrium, the rate constants of the forward and reverse reactions are equal.

• True
• False

At equilibrium, the rates of the forward and reverse reactions are equal.

• True
• False

At equilibrium...

• Only the forward reaction is occurring
• Only the reverse reaction is occurring
• Both the forward and reverse reaction are occurring
• Neither reaction is occurring

If the Kc for a reaction is 4532, the reaction will...

• Favor the products
• Favor the reactants
• Have significant amounts of both at equilibrium

If the Kc for a reaction is 1.7, the reaction will...

• Favor the products
• Favor the reactants
• Have significant amounts of both at equilibrium

If the Kc for a reaction is 4.2x10-9, the reaction will...

• Favor the products
• Favor the reactants
• Have significant amounts of both at equilibrium

The units for Q and Kc are M/s

• True
• False

If the Kc value for A + B -> C is 3, what is the Kc value for C -> A + B?

• 9
• 0.33
• 6
• -3