C3 - The Haber Process Flashcards
What type of reaction is the Haber Process?
A reversible one.
What is the symbol equation for the Haber Process?
N2 + 3H2 2NH3 + heat
Where is the nitrogen used in the Haber Process sourced from and why?
The air because it’s 78% N2.
Where is the hydrogen used in the Haber Process sourced from?
Natural gas.
What are the industrial conditions for the Haber Process? [3]
Pressure: 200 atmospheres.
Temperature: 450c.
Catalyst: iron.
What sort of pressure is used during the Haber Process?
As high as possible so it favours the forward exothermic reaction.
What happens if you raise the temperature too much in the Haber Process?
It will move the equilibrium the wrong way.
What will happen if the temperature is too low during the Haber Process?
The rate of reaction will be too low.
Why is the temperature of the Haber Process 450c?
It is a compromise between maximum yield & speed.
What is formed from the Haber Process and how is it removed?
Ammonia is formed as a gas.
It cools, liquefies and is removed.
What happens to the unused N2 & H2 from the Haber Process and why?
It is recycled so there is none wasted.
Why is an iron catalyst used during the Haber Process?
It speeds up the reaction so it reaches equilibrium faster.
What would have to happen if a catalyst was not used during the Haber Process?
The temperature would have to be raised, lowering the yield.
What is the reaction involved in the Haber Process?
Nitrogen + hydrogen ammonia.
