C3.5 Production Of Ammonia Flashcards
What’s a dynamic equilibrium?
Unchanging amounts
Constant reaction
Closed system
Name 2 products on the market with reversible reactions?
Sports injury pack
Hand warmers
If I decrease the temperature of the reaction what will happen?
The system increases the temperature so it will favour the exothermic reaction so the temperature is the same
What happens if I increase the pressure of the equilibrium?
The system will try to decrease the pressure so will favour the reaction that produces the product with a lower pressure
What is Le Chatelier’s Principle?
Whatever change is put in the equilibrium the reaction opposes the change
What’s the Haber process?
Putting nitrogen and hydrogen together to make ammonia
What conditions are needed for the hater process?
High heat and pressure
What yield is the haver process?
15%
Why is the temperature 450 for the haver process?
For rate they want a high temperature so it’s faster but they want a low temperature for yield as then the system will favour the exo reaction and more ammonia will be produced so they comprise
But it’s high as it’s in demand
Why is the pressure 200 atmospheres?
As for rate and yield a high pressure is needed so it’s fast and so ammonia is produced more
But that’s expensive and hard to make the equipment so they compromise
