3. Diesel oil is a mixture of hydrocarbons that can be obtained from crude oil - Edexcel - GCSE Chemistry - Question 3 - 2021 - Paper 1
Question 3
3. 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) ... show full transcript
Worked Solution & Example Answer:3. Diesel oil is a mixture of hydrocarbons that can be obtained from crude oil - Edexcel - GCSE Chemistry - Question 3 - 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 fractional distillation.
Step 2
Which statement about compounds in this homologous series is true?
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Answer
The correct statement is C: they have the same general formula.
Step 3
Complete the balanced equation for the reaction.
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Answer
The balanced equation for the reaction is:
ightarrow 2NO_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 complete combustion of diesel oil produces carbon dioxide (CO2) and water vapor (H2O). These gases absorb heat radiated from the Earth, allowing it to trap heat in the atmosphere. This process contributes to the greenhouse effect, as the gases re-radiate heat back into the atmosphere, leading to an increase in global temperatures.
