haber process

Question 1

what does the haber process produce

Answer 1

ammonia

Question 2

what is ammonia used for

Answer 2

fertilisers and the making of nitric acid

Question 3

The structure of ammonia

Answer 3

N
/ | \
H H H

Question 4

How many stages are there in the haber process

Answer 4

5

Question 5

the first stage of the haber process

Answer 5

Hydrogen and nitrogen mixed and cleaned

Question 6

the second stage of the haber process

Answer 6

the hydrogen and nitrogen are compressed

Question 7

the third stage of the haber process

Answer 7

An iron catalyst is used. This is when the ammonia is made

Question 8

the fourth stage of the haber process

Answer 8

The ammonia is condensed into a liquid (cooled) and stored

Question 9

the fifth stage of the haber process

Answer 9

unreacted hydrogen and nitrogen are recycled and used in the process again

Question 10

formula for ammonia

Answer 10

NH3

Question 11

What is a problem with the reaction

Answer 11

its a reversible reaction

Question 12

How do you know the reaction is reversible

Answer 12

there’s arrows rather than an equals sign

Question 13

Why is it bad that the reaction is reversible

Answer 13

The ammonia can change back into its reactants easily

Question 14

equation of the haber process (making of ammonia)

Answer 14

N2(g) + 3H2(g) -> 2NH3(l)

Question 15

what is the yield

Answer 15

the amount of ammonia produced

Question 16

what is the temperature of the haber process

Answer 16

450 degres

Question 17

what is the pressure of the haber process

Answer 17

200 atmosphere

Question 18

What catalyst is used in the haber process

Answer 18

iron catalyst

Question 19

why is temperature taken in to consideration in the haber process

Answer 19

moderate/low temperature= reaction too slow but makes more ammonia
high temperature=reaction faster but makes less ammonia and is more expensive

Question 20

Why is pressure taken into consideration in the haber process

Answer 20

higher the pressure the more quickly ammonia is made however when the pressure increase the cost does too

Question 21

why is a catalyst used in the haber process

Answer 21

speeds up the reaction while saving energy costs

Question 22

why are unreacted nitrogen and hydrogen used again

Answer 22

to save money

Question 23

why is the ammonia condensed

Answer 23

when ammonia is a liquid its easier to extract

Question 24

Why did they come to a compromise with temperature and pressure when making ammonia

Answer 24

so they can make a reasonable yield for a reasonable time that is not to expensive

Question 25

What is the most important factor when deciding the conditions of the haber process

Answer 25

running costs not the yield

Question 26

what do they need to think about when it comes to running cost

Answer 26

energy used, getting raw materials, workers wages, equipment, conditions