2730499
Descrição
Quiz por lisawinkler10, atualizado more than 1 year ago
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Criado por lisawinkler10
aproximadamente 9 anos atrás
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Questão 1
Questão
The following questions are on the Haber process. What is the process used for?
Responda
-
The manufacture of Sulfuric Acid
-
The manufacture of Ammonia
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The manufacture of Nitrogen
-
Cracking hydrocarbons
Questão 2
Questão
Tick what Ammonia is made of
Responda
-
Nitrogen
-
Hydrogen
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Carbon
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Oxygen
Questão 3
Questão
Which two could hydrogen be obtained from?
Responda
-
Natural gas
-
Cracking of hydrocarbons
-
Burning sulfur in air
-
Electrolysis of water
Questão 4
Questão
The nitrogen is obtained from air
Responda
- True
- False
Questão 5
Questão
The reaction for the Haber Process is: N2 + 3 H2 ⇌ 2 NH3 (ΔH = −92.4 kJ·mol−1)
Responda
- True
- False
Questão 6
Questão
The equilibrium position is shifted to the right hand side for a high yield by...
Responda
-
using a low temperature and a high pressure
-
using a high temperature and a high pressure
-
using a high temperature and a low pressure
-
using a low temperature and a low pressure
Questão 7
Questão
What is the pressure used?
Responda
-
2 atmospheres
-
4 atmospheres
-
50 atmospheres
-
200 atmospheres
Questão 8
Questão
What reasons make a high pressure very expensive?
Responda
-
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
Questão 9
Questão
What temperature is used as a compromise between rate and yield?
Responda
-
450℃
-
200℃
-
1000℃
-
50℃
Questão 10
Questão
What is the most economical catalyst?
Responda
-
Iron
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Sodium
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Magnesium
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Lead
Questão 11
Questão
Under the conditions, how much hydrogen and nitrogen is converted into ammonia?
Responda
-
98%
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15%
-
60%
-
100%
Questão 12
Questão
What happens to the unreacted nitrogen and hydrogen?
Responda
-
Passed again into the reaction chamber
-
Disposed of
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Sent for analysis
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Released into the environment to promote global warming
Questão 13
Questão
What happens to the ammonia?
Responda
-
It leaves the reaction vessel and is cooled, liquefied and tapped off.
-
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.
Questão 14
Questão
What is ammonia used for?
Responda
-
Manufacture of fertilisers
-
Manufacture of nitric acid
-
Manufacture of nylon
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Manufacture of steel
Questão 15
Questão
The following questions are on the Contact process. What is it used for?
Responda
-
Manufacture of sulfuric acid
-
Manufacture of ammonia
-
Manufacture of fertilisers
-
Manufacture of Copper Oxide
Questão 16
Questão
Stage 1 of the contact process is making sulfur dioxide: S(s)+O2(g)→SO2(g). How is this done?
Responda
-
By burning sulfur in air
-
By reacting it with oxygen
-
By absorbing it in oxygen
-
By diluting it with oxygen
Questão 17
Questão
Stage 2 of the contact process is making sulfur trioxide: 2SO2(g)+O2(g)⇌2SO3(g) ΔH=−196kJ/mol. How is this done?
Responda
-
Sulfur dioxide is reacted with oxygen
-
Sulfur dioxide is burnt in air
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Sulfur dioxide is absorbed into oxygen
-
Sulfur dioxide is diluted with oxygen
Questão 18
Questão
It is called the contact process because in stage 2, the two gases react together in contact with a solid catalyst, Vanadium(V) Oxide
Responda
- True
- False
Questão 19
Questão
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℃
Responda
- True
- False
Questão 20
Questão
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?
Responda
-
2 atmospheres
-
200 atmospheres
-
50 atmospheres
-
1000 atmospheres
Questão 21
Questão
Stage 3 of the contact process is making oleum: H2SO4(l)+SO3(g)→H2S2O7(l). How is this done?
Responda
-
Sulfur trioxide is absorbed into concentrated sulfuric acid
-
Sulfur trioxide is burnt with concentrated sulfuric acid
-
Sulfur trioxide is dissolved into concentrated sulfuric acid
-
Sulfur trioxide is diluted with concentrated sulfuric acid
Questão 22
Questão
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?
Responda
-
Oleum is diluted with water
-
Oleum is is rinsed with water
-
Oleum is recycled into water
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Oleum is neglected by his parents
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