fertilisers Flashcards
1
Q
Growing plants require
A
nutrients
2
Q
elements essential for plant growth are
A
- Nitrogen, N
- Phosphorus, P
- Potassium, K
3
Q
what are fertilisers
A
substance which restore elements, essential from health plant growth
4
Q
fertilisers need to
A
be soluble
5
Q
What is Ammonia
A
a pungent, clear, colourless gas which dissolbes in water to produce an alkaline solution
6
Q
Ammonia solution + an acid
A
an ammonium salt + water
7
Q
The Haber Process
A
prodces the ammonia required for fertiliser production
8
Q
N2 + 3H2
A
2NH3
9
Q
what catalyst is used in the Haber Process
A
Iron
10
Q
Ammonia is the starting material
A
for the commericial production of nitric acid
11
Q
Haber Process is
A
reversible
12
Q
The Ostwald process uses
A
ammonia, oxygen and water
13
Q
What catalyst is used in the Ostwald Process
A
Platinum
14
Q
HAIR
A
Haber
Ammonia
Iron
Reversible
15
Q
OPEN
A
Ostwald
Platinum
Exothermic
Nitric Acid
