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Haber Process

Total questions: 21

Worksheet time: 12mins

Name
Class
Date
1.

The Haber process is the industrial process for making...

a)

Ammonia

b)

Sulfuric Acid

c)

Margarine

d)

Salts

2.

What are the raw materials for the Haber process?

a)

Hydrogen and Oxygen

b)

Hydrogen and Nitrogen

c)

Water and Nitrogen

d)

Oxygen and Nitrogen

3.

What are the optimum conditions for the Haber process?

a)

 450 atm450\ atm and 200°C200\degree C  

b)

 200 atm200\ atm  and  450°C450\degree C  

4.

What is the catalyst used in the Haber process?

a)

Vanadium (V) Oxide

b)

Nickel

c)

Finely-divided Iron

d)

Chromium

5.

What is a reversible reaction?

a)

A reaction with oxidation and reduction

b)

A reaction with a forward and backward reaction

c)

A reaction with electron loss and gain

d)

A reaction that goes in reverse

6.

How is nitrogen obtained for use in the Haber process?

a)

By the simple distillation of liquid air

b)

By the filtration of liquid air

c)

By the titration of liquid air

d)

By the fractional distillation of liquid air

7.

The Haber process involves an exothermic reaction. What is the effect on the yield when the temperature is increased?

a)

More ammonia is produced

b)

Less ammonia is produced

c)

No change in ammonia produced

8.

What would happen if the temperature of a Haber process is reduced to below  450°C450\degree C  ? (Choose 2)

a)

Less ammonia would be produced

b)

The reaction would be faster

c)

The reaction would be slower

d)

More ammonia would be produced

9.

What is the effect of increasing the pressure of a Haber process?

a)

Equilibrium shifts to the left, more ammonia is produced

b)

Equilibrium shifts to the left, less ammonia is produced

c)

Equilibrium shifts to the right, more ammonia is produced

d)

Equilibrium shifts to the right, less ammonia is produced

10.
Ammonia is used for:
a) cleaning agent
b) fertiliser
c) explosive production
d) soap production
a)
a and b
b)
b, c and d
c)
a, b and c
d)
c and d
11.
Which equation represents the formation of ammonia
a)
N2 + H2 ₋> NH3
b)
N + 3H ₋> NH3
c)
N2 + 3H2 ₋> NH3
d)
N2 + 3H2 ₋> 2NH3
12.
Hydrogen for the Haber process is made from
a)
Methane in natural gas
b)
Fractional distillation of air
c)
Fractional distillation of crude oil
d)
Electrolysis
13.
If we increase the pressure, what will happen to the reaction
a)
It will slow down
b)
More ammonia will be produced
c)
Less ammonia will be produced
d)
Nothing will change
14.
Why aren't high pressures for the Haber process used in industry?
a)
Too expensive and dangerous
b)
Less ammonia is formed
c)
The reaction is too slow
d)
The catalyst is poisoned
15.

What are the usual conditions of the Haber Process

a)

450'C, 550 atm, Iron Catalyst

b)

100'C, 200 atm, Diamond Catalyst

c)

450'C, 250 atm, Iron Catalyst

d)

-450'C, 250 atm, Iron Catalyst

16.

What is the raw material for the hydrogen?

a)

water

b)

air

c)

natural gas

d)

plants

17.

Why isn't surface area a factor of the Haber Process?

a)

N and H are gases

b)

Only liquids have surface area

c)

Nitrogen is solidified into Ammonia

d)

Hydrogen is melted into Ammonia

18.

What is the Haber Process?

a)

The production of ammonia by combining nitrogen and hydrogen gasses

b)

The production of nitrogen by combining hydrogen and ammonia gasses

c)

The production of hydrogen by combining ammonia and nitrogen gasses

d)

The ionization of ammonia

19.

What is the raw material for nitrogen?

a)

Air

b)

Water

c)

Natural Gas

d)

Plants

20.
22. Explain why only a moderately high temperature is used in industry for the production of Ammonia.
a)
a) Produces a lower % yield but at a faster rate
b)
b) Produces a higher % yield but at a faster rate
c)
c) Produces a lower % yield but at a slower rate
d)
d) Produces a higher % yield but at a slower rate
21.
26. Once the Ammonia is separated from the Nitrogen and Hydrogen what is done with the spare Nitrogen and Hydrogen?
a)
a) The Hydrogen is sold as it is an expensive commodity and the Nitrogen is discarded.
b)
b) They are both recycled.
c)
c) The Nitrogen is is sold as it is an expensive commodity and the Hydrogen is discarded.
d)
d) Both are discarded as it is too expensive to separate them.

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