Equilibrium Quiz 2

Reactions that continue in both directions are called:

• dynamic reactions

• irreversible reactions

• reversible reactions

• non-reactive reactions

2SO₂(g)+O₂(g)⇌2SO₃(g)

Removing O₂(g) will

• shift equilibrium right

• shift equilibrium left

• decrease temperature

• have no change

Define chemical equilibrium.

• The rate of a forward reaction is equal to the rate of the reverse reaction.

• The reaction stops and no further change in concentration occurs.

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

• A reaction is reversible.

The idea that when a system at equilibrium is stressed, it will react to relieve that stress and return to equilibrium is known as:

• Boyle's Law

• Charles Law

• Le Chatelier's Principle

• Denninger's Law

A chemical equilibrium may be established by starting a reaction with _________

• reactants only.

• products only.

• equal quantities of reactants and products.

• any quantities of reactants and products.

• all the above

At equilibrium the concentration of all species in the reaction is _________.

• Constant

• Decreasing

• Increasing

• Oscillating

Which factors increase the rate of a reaction.

• increasing temperature

• increasing concentration

• increasing surface area

• all of these

Around what time is equilibrium estatblished?

• 20 s

• 60s

• 40s

• 80 s