SABIS EQUILIBRIUM INTRODUCTION REVIEW

Equilibrium is a __________ process

• Static
• Dynamic
• Probabilistic
• Fictitious

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

• Constant

• Increasing

• Decreasing

• Equal

At what time the reaction reached equilibrium?

• t₁
• t₂
• t₃
• t₄

This symbol indicates that a reaction is ____________

• reversible
• irreversible

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

Why is equilibrium called a dynamic state?

• Chemists try to convert as much reactants as possible into products.
• The reactions at equilibrium continue to take place once equilibrium is established.
• The products of a forward reaction are favored, so equilibrium lies to the right.
• All chemical reactions are considered to be reversible under suitable conditions.

Which is true for a system at equilibrium?

• Forward reaction rate is faster than the reverse and concentrations are equal

• Forward and reverse reaction rates are equal and concentrations are constant

• Forward and reverse reaction rates are equal and concentrations are equal

• Forward reaction rate is faster than the reverse and concentrations are constant

True or false? “At equilibrium, all microscopic processes stop”.

• True

• False

What, specifically, is “equal” in a chemical reaction that has attained a state of equilibrium?

Equilibrium: is the point when the [reactants] and [products] becomes ......

• Equal

• Constant