The Harber process and ammonia

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  • Created by: Ellie
  • Created on: 19-05-13 14:49
What is the Harber process?
The production of ammonia
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What are Ammonias uses?
to make fertilisers and to make nitric acid
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What is the chemical equation for the Harber process?
N2 + 3H2 = 2NH3
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Where is the nitrogen in the harber process obtained from?
the air
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Where is the hydrogen in the Harber process obtained from?
natural gas
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What are the industrial conditions required in the harber process?
450 degrees, 200 atmospheres and an iron catalyst
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What do you need for maximum yield?
low temperatures and high pressure
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Why don't we use the conditions required for maximum yield?
they'd be too slow and expensive
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How is the ammonia separated from the hydrogen and nitrogen?
it cools and liquifies and is removed from the nitrogen and hydrogen.
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What type of reaction is the Harber process?
reversible
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What is equilibrium?
When the rate of the forward reaction = the rate of the reverse reaction
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If we increase the temperature what happens to a reversible reaction?
It becomes more endothermic
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If we increase the pressure what happens to the pressure?
It makes more gas molecules
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Other cards in this set

Card 2

Front

What are Ammonias uses?

Back

to make fertilisers and to make nitric acid

Card 3

Front

What is the chemical equation for the Harber process?

Back

Preview of the front of card 3

Card 4

Front

Where is the nitrogen in the harber process obtained from?

Back

Preview of the front of card 4

Card 5

Front

Where is the hydrogen in the Harber process obtained from?

Back

Preview of the front of card 5
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