Dynamic Equilibrium Flashcards
What does the symbol ‘⇌’ mean in a reaction?
The reaction is reversible
Explain what is meant by the term ‘reversible reaction’.
A reaction where the products can react with each other to produce the original reactants
The haber process is an example of a reversible reaction.
Describe what the haber process is.
A reaction in which nitrogen, extracted from the air, and hydrogen, obtained from natural gas, react to form ammonia
What are the conditions required to carry out the haber process?
- Temperature 450 °C
- Pressure of 200 atmospheres
- An iron catalyst
What is meant by ‘dynamic equilibrium’?
- Dynamic equilibrium occurs when the forward and backward reactions in a reversible reaction happen at the same time and same rate
- There is no change in concentration of the reactants or the products
(Exam-style question)
Equilibrium can only be reached if the reversible reaction takes place in a closed system.
Explain what is meant by a ‘closed system’.
A closed system is a system where none of the reactants or products can escape, therefore there is no observable change
