the haber process Flashcards
1
Q
hp def
A
industrial production of ammonia from nitrogen and hydrogen
2
Q
hp eq
A
N2 + 3H2 –> (reversible) 2NH3 ( + heat)
3
Q
use of ammonia
A
nitrogen based fertilisers
allows us to grow the food we need
4
Q
temp in hp
A
450’C
lower temp favours forward reaction ( exothermic)
-higher % yield
-high temp increases rate of reaction
-high temp costly
450 gives lower yield faster rate
5
Q
pressure of hp
A
higher % yield (fewer molecules of the product)
high pressure pushes equilibrium to the right
-increases RoR
-very high pressure is expensive to maintain and can be dangerous