The Haber Process 

This lesson covers:

  1. What 'the Haber process' is & why it's so important
  2. How the reaction works 
  3. Why the conditions of 450°C and 200 atm are used 

Video Error Notice


At 3:05. We say that the hydrogen and nitrogen don't condense because they have 'higher boiling points' than ammonia, but we meant to say that hydrogen and nitrogen don't condense because they have 'lower boiling points' than ammonia. This is why ammonia condenses but hydrogen and nitrogen stay as gases


Sorry about that, we'll fix it when we update the video. 

Which of the following is the reaction of the Haber process?

nitrogen + hydrogen ➔ ammonia 

nitrogen dioxide + hydrogen ➔ ammonia + water

nitrogen + oxygen ➔ nitrogen dioxide 

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Balance the the following equation:


N2 + H2NH3

3
2

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Illustration of flames representing an exothermic reaction.

Is the Haber process an exothermic or endothermic reaction?

Exothermic

Endothermic

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Diagram showing the structure of an ammonia molecule with one nitrogen atom bonded to three hydrogen atoms.

Why is ammonia so important?

It is used in fertilisers

It is used as a fuel

It is used in medicines

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Which metal acts as a catalyst for the Haber process?

Iron

Aluminium

Nickel

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Where do we get the nitrogen required for the Haber process from? 

Make it from hydrocarbons

Waste product of sewage treatment

Take it from the air

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Where do we get the hydrogen required for the Haber process from? 

Take it from the air

Make it from hydrocarbons

Waste product of sewage treatment

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What does the '⇌' symbol mean in a chemical equation? 

The reaction is very fast

There is not enough energy for the reaction to take place

The reaction is reversible 

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Explain why a temperature of 450°C is used in the Haber process. 

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Explain why a pressure of 200 atmospheres is used in the Haber process. 

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