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GCSE
Gcse Chemistry
Production Of Ammonia 1
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Q.1
Plants need nitrogen to grow. How do we ensure that plants get the nitrogen that they need?
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Increase the amount of nitrogen in the air around the plants
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Increase the amount of nitrogen in the soil around the plants' roots
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Increase the amount of nitrates in the soil around the plants' roots
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Increase the amount of nitrates in the air around the plants
Q.2
Why can't plants use the nitrogen in the air?
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It's unreactive
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It can't get into their leaves
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It doesn't dissolve in water
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It can't get into their roots
Q.3
What is the name of the industrial process which turns nitrogen and hydrogen into ammonia?
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Nitrogen process
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Contact process
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Haber process
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Ammonia process
Q.4
The raw materials for the Haber process are...
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nitrogen from the air hydrogen from water
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nitrogen from the sea hydrogen from natural gas
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nitrogen from ammonia hydrogen from the air
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nitrogen from the air hydrogen from natural gas
Q.5
Name the catalyst used in the Haber process.
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Platinum
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Iron
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Vanadium (V) oxide
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Nickel catalyst
Q.6
Pick the temperature at which the Haber process takes place most efficiently.
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20oC
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200oC
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450oC
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900oC
Q.7
Pick the pressure at which the Haber process is carried out.
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200 atmospheres
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100 atmospheres
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50 atmospheres
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1 atmosphere
Q.8
The reaction that produces ammonia is reversible. What does this mean?
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The ammonia breaks down again into hydrogen and nitrogen
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The ammonia doesn't break down into hydrogen and nitrogen
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Ammonia is produced but then it reproduces itself
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The hydrogen and nitrogen never stop reacting
Q.9
To reduce the breaking down of ammonia into nitrogen and hydrogen, what is done?
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Water is added to the ammonia
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The nitrogen and hydrogen are forced to stop reacting
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The ammonia is added to the hydrogen and nitrogen
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The ammonia is cooled and removed
Q.10
Pick the correct equation for the Haber process.
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N2 + 3H2 → 2NH3
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N2 + 3H2 → NH3
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N2 + 3H2 ⇌ 2NH3
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N2 + H2 ⇌ NH3
0 h : 0 m : 1 s
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