9. Diesel oil is a mixture of hydrocarbons that can be obtained from crude oil - Edexcel - GCSE Chemistry - Question 9 - 2021 - Paper 1
Question 9
9. Diesel oil is a mixture of hydrocarbons that can be obtained from crude oil.
(a) State the name of the process used to separate diesel oil from crude oil.
(b) D... show full transcript
Worked Solution & Example Answer:9. Diesel oil is a mixture of hydrocarbons that can be obtained from crude oil - Edexcel - GCSE Chemistry - Question 9 - 2021 - Paper 1
Step 1
State the name of the process used to separate diesel oil from crude oil.
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Answer
The process used to separate diesel oil from crude oil is called fractional distillation.
Step 2
Which statement about compounds in this homologous series is true?
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Answer
The correct answer is B: they have the same empirical formula. This means that while the compounds may differ in molecular structure, they maintain the same simplest ratio of elements.
Step 3
Complete the balanced equation for the reaction.
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Answer
The balanced equation for the reaction is:
ightarrow 2 ext{NO}_2$$
Step 4
Explain how the greenhouse effect is caused by the gases produced by the complete combustion of diesel oil.
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Answer
The greenhouse effect is significantly influenced by the gases released during the combustion of diesel oil. When diesel is burned, carbon dioxide (CO₂) is produced as a byproduct.
Carbon dioxide is a greenhouse gas that traps heat in the atmosphere, contributing to global warming. Additionally, other gases produced, such as nitrogen oxides (NOx), enhance the greenhouse effect by further increasing atmospheric temperatures. The build-up of these gases creates a thicker atmosphere, which results in higher surface temperatures, leading to climate change.
