An important chemical for making other chemicals, including fertilisers.
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What is ammonia made from?
In the Haber process ammonia is made from nitrogen and hydrogen.
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What happens to any unreacted nitrogen and hydrogen in the Haber process?
It is recycled.
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What is the Haber process?
A process used to manufacture ammonia, which can be used to make fertilisers and other chemicals.
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How is ammonia made in the Haber process?
Nitrogen from the air and hydrogen, which is usually obtained from natural gas, are purified and mixed in the correct proportions.
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What happens to the nitrogen and hydrogen in the Haber process?
The gases are passed over an iron catalyst at a temperature of about 450°C and a pressure of about 200 atmospheres.
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Why is the Haber process done using specific conditions?
The conditions are chosen to give a fast rate of reaction and a reasonable yield of ammonia.
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What is the reaction for this process?
N_2(g) + 3H_2(g) = 2NH_3(g) the reaction is reversible.
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What happens to some of the ammonia that is produced?
It breaks down into nitrogen and hydrogen and the yield of ammonia is only about 15%.
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What happens to the gases that come out of the reactor?
They are cooled so the ammonia condenses, the liquid ammonia is separated from the unreacted gases and the unreacted gases are recycled so that they are not wasted.
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What is the word equation for the manufacture of ammonia?
Nitrogen + hydrogen = ammonia.
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What is done in the Haber process to conserve raw material?
Unreacted gases are recycled.
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Other cards in this set
Card 2
Front
What is ammonia made from?
Back
In the Haber process ammonia is made from nitrogen and hydrogen.
Card 3
Front
What happens to any unreacted nitrogen and hydrogen in the Haber process?
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