Reversible reactions and equilibrium

Front

What is the symbol which is used in reversible reactions?

Back

⇌

Front

If the concentration of SO₂ is increased, the equilibrium of the reaction SO₂ + O₂ ⇌ SO₃ will shift ___________.

Back

right

Front

If a reversible reaction is exothermic in the forward direction, it will be ...

Back

endothermic in the reverse direction

Front

What are the two factors to look for when determining if the reaction is at equilibrium?

Back

Forward and reverse reaction rates are equal and concentration is constant

Front

A chemical reaction occurring in both the forward and reverse direction is called a(n) ______ reaction.

Back

reversible

Front

What is equilibrium in the context of reversible reactions?

Back

A state where the rates of the forward and reverse reactions are equal.

Front

What happens to the equilibrium position if the temperature is increased in an exothermic reaction?

Back

The equilibrium shifts to the left.

Front

What is Le Chatelier's Principle?

Back

If a system at equilibrium is subjected to a change in concentration, temperature, or pressure, the system will adjust to counteract that change.

Front

What is an example of a reversible reaction?

Back

The synthesis of ammonia: N₂ + 3H₂ ⇌ 2NH₃.

Front

What does it mean for a reaction to be endothermic?

Back

It absorbs heat from the surroundings.