Chemical Equilibrium

Chemical Equilibrium

Fill in the Blank

This symbol indicates that a reaction is _____

Multiple Choice

When the rate of the forward reaction is equal to the rate of backward reaction, the system is said to be in

• Chemical Equilibrium

• Chemical Balance

• Stoichiometry

• Chemical Reaction

Multiple Select

Which of the following is TRUE at equilibrium? (Check all possible answers)

• The forward and reverse reactions proceed at the same rate.

• The concentrations of reactants and products do not change.

• The forward and reverse reactions continue to occur.

• The concentration of the reactants is equal to the concentration of the products.

Multiple Select

Which of the following is the condition needed to establish the equilibrium? (Check all possible answers).

• Constant Temperature

• All reactants and products should be in closed system

• Products and reactants should be in constant dynamic motion

• none of the above

Multiple Choice

When K is large,

• The amount of reactants is equal to the amount of products.

• There are more products than reactants when the reaction reached equilibrium.

• There are more reactant than products when the reaction reached equilibrium.

Multiple Choice

Le Chatelier's Principle states that if a chemical system at equilibrium is stressed,

• the system will adjust to increase the stress

• the system will not adjust

• the system will adjust to reduce the stress

Multiple Select

The following factors affect the position of equilibrium (Check all possible answers)

• Concentration

• Temperature

• Pressure

• State of Matter

Multiple Choice

For the reaction...

SO₂ + O₂ <−> SO₃

If the equilibrium shifts to the right, the concentration of O₂ will ___________.

• decrease

• increase

• stay the same

• double

Fill in the Blank

For the reaction...

SO₂ + O₂ ⇌ SO₃

If the concentration of SO₂ is increased, the equilibrium of the reaction will shift ___________. (Right, left or none)