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Quiz von lisawinkler10, aktualisiert more than 1 year ago
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Erstellt von lisawinkler10
vor etwa 9 Jahre
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Frage 1
Frage
The following questions are on the Haber process. What is the process used for?
Antworten
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The manufacture of Sulfuric Acid
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The manufacture of Ammonia
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The manufacture of Nitrogen
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Cracking hydrocarbons
Frage 2
Frage
Tick what Ammonia is made of
Antworten
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Nitrogen
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Hydrogen
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Carbon
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Oxygen
Frage 3
Frage
Which two could hydrogen be obtained from?
Antworten
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Natural gas
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Cracking of hydrocarbons
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Burning sulfur in air
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Electrolysis of water
Frage 4
Frage
The nitrogen is obtained from air
Antworten
- True
- False
Frage 5
Frage
The reaction for the Haber Process is: N2 + 3 H2 ⇌ 2 NH3 (ΔH = −92.4 kJ·mol−1)
Antworten
- True
- False
Frage 6
Frage
The equilibrium position is shifted to the right hand side for a high yield by...
Antworten
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using a low temperature and a high pressure
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using a high temperature and a high pressure
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using a high temperature and a low pressure
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using a low temperature and a low pressure
Frage 7
Frage
What is the pressure used?
Antworten
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2 atmospheres
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4 atmospheres
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50 atmospheres
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200 atmospheres
Frage 8
Frage
What reasons make a high pressure very expensive?
Antworten
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A lot of energy needed to compress the gases
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Thick-walled pipes and reaction containers are needed
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Dangerous so requires pressure safety equipment
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Releases fossil fuels
Frage 9
Frage
What temperature is used as a compromise between rate and yield?
Antworten
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450℃
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200℃
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1000℃
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50℃
Frage 10
Frage
What is the most economical catalyst?
Antworten
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Iron
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Sodium
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Magnesium
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Lead
Frage 11
Frage
Under the conditions, how much hydrogen and nitrogen is converted into ammonia?
Antworten
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98%
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15%
-
60%
-
100%
Frage 12
Frage
What happens to the unreacted nitrogen and hydrogen?
Antworten
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Passed again into the reaction chamber
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Disposed of
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Sent for analysis
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Released into the environment to promote global warming
Frage 13
Frage
What happens to the ammonia?
Antworten
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It leaves the reaction vessel and is cooled, liquefied and tapped off.
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It stays in the reaction vessel and is cooled, liquefied and tapped off.
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It leaves the reaction vessel and is cooled, solidified and removed.
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It stays in the reaction vessel and is cooled, solidified and tapped off.
Frage 14
Frage
What is ammonia used for?
Antworten
-
Manufacture of fertilisers
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Manufacture of nitric acid
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Manufacture of nylon
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Manufacture of steel
Frage 15
Frage
The following questions are on the Contact process. What is it used for?
Antworten
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Manufacture of sulfuric acid
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Manufacture of ammonia
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Manufacture of fertilisers
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Manufacture of Copper Oxide
Frage 16
Frage
Stage 1 of the contact process is making sulfur dioxide: S(s)+O2(g)→SO2(g). How is this done?
Antworten
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By burning sulfur in air
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By reacting it with oxygen
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By absorbing it in oxygen
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By diluting it with oxygen
Frage 17
Frage
Stage 2 of the contact process is making sulfur trioxide: 2SO2(g)+O2(g)⇌2SO3(g) ΔH=−196kJ/mol. How is this done?
Antworten
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Sulfur dioxide is reacted with oxygen
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Sulfur dioxide is burnt in air
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Sulfur dioxide is absorbed into oxygen
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Sulfur dioxide is diluted with oxygen
Frage 18
Frage
It is called the contact process because in stage 2, the two gases react together in contact with a solid catalyst, Vanadium(V) Oxide
Antworten
- True
- False
Frage 19
Frage
The forward reaction is exothermic so the yield would be increased by using a low temperature but due to rate of reaction, it is carried out at 450℃
Antworten
- True
- False
Frage 20
Frage
There are fewer molecules on the right so the yield would increase with pressure, but as the yield is already 98%, what is the pressure used?
Antworten
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2 atmospheres
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200 atmospheres
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50 atmospheres
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1000 atmospheres
Frage 21
Frage
Stage 3 of the contact process is making oleum: H2SO4(l)+SO3(g)→H2S2O7(l). How is this done?
Antworten
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Sulfur trioxide is absorbed into concentrated sulfuric acid
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Sulfur trioxide is burnt with concentrated sulfuric acid
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Sulfur trioxide is dissolved into concentrated sulfuric acid
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Sulfur trioxide is diluted with concentrated sulfuric acid
Frage 22
Frage
The next part of stage 3 makes a concentrated solution of sulfuric acid out of oleum: H2S2O7(l)+H2O(l)→2H2SO4(aq). How is this done?
Antworten
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Oleum is diluted with water
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Oleum is is rinsed with water
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Oleum is recycled into water
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Oleum is neglected by his parents
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