Ammonia

Question 0

What materials are needed to make ammonia? Where can they be obtained?

Answer 0

Nitrogen from the air

Hydrogen from natural gas

Question 1

How is ammonia produced?

Answer 1

Using the haber process

Question 2

What catalyst is used?

Answer 2

Iron

Question 3

What temperature is it done at?

Answer 3

450°C

Question 4

What pressure is it done at?

Answer 4

200 atmospheres

Question 5

Why must it be done in these conditions?

Answer 5

Reversible reaction
If pressure was lower, reverse reaction would increase
If temperature was higher, reverse reaction would increase

Question 6

Describe the haber process

Answer 6

Gas, hydrogen and nitrogen enters
Compressed and heated
Reacted with iron catalyst
Cools and liquified
Unreacted hydrogen and nitrogen go back to start

Question 7

What is chemical equilibrium?

Answer 7

When the forward rate and reverse rate are equal

Question 8

If the forward reaction is endothermic, a temperature increase would favour the … reaction

Answer 8

Forwards

Question 9

If the forward reaction is endothermic, a temperature decrease would favour the … reaction

Answer 9

Reverse

Question 10

If the forward reaction is exothermic, a temperature increase would favour the … reaction

Answer 10

Reverse

Question 11

If the forward reaction is exothermic, a temperature decrease would favour the … reaction

Answer 11

Forward

Question 12

If there were more reactant molecules and an increase in pressure, which reaction would be favoured?

Answer 12

Forwards

Question 13

If there were more reactant molecules and a decrease in pressure, which reaction would be favoured?

Answer 13

Reverse

Question 14

If there were more product molecules and an increase in pressure, which reaction would be favoured?

Answer 14

Reverse

Question 15

If there were more product molecules and a decrease in pressure, which reaction would be favoured?

Answer 15

Forwards