C6.3 pt 2

Question 1

The Haber process equation

Answer 1

N2(g)+3H2(g)=2NH3(g)
exothermic reaction

Question 2

Reactants

Answer 2

Nitrogen and hydrogen

Question 3

What are the sources of the reactants

Answer 3

The nitrogen is produced by cooling the air to -196 degrees (boiling point)
Hydrogen could be made by electrolysis but is normally obtained by methane hydration

Question 4

Products

Answer 4

Ammonia

Question 5

Uses of the ammonia

Answer 5

Used to make nitrogen based fertilizers and cleansing agents

Question 6

At what temperature and pressure is the Haber process normally carried out?

Answer 6

It is carried out at 4450 degrees and 250 atmospheres (atm)

Question 7

What is the catalyst used in the Haber process

Answer 7

An iron catalyst

Question 8

What is the definition of yield

Answer 8

The amount of useful product formed

Question 9

3 main factors that affect yield in the Haber process

Answer 9

Temperature-Low temperature= higher % yield
Pressure- Higher pressure= higher % yield
Concentration- Higher concentration=higher % yield

Question 10

3 main factors that affect rate of reaction/cost in the Haber process

Answer 10

Temperature, pressure and concentration
The higher the temperature, pressure and concentration, the higher the rate of reaction and cost