6. Diesel oil is a mixture of hydrocarbons that can be obtained from crude oil - Edexcel - GCSE Chemistry Combined Science - Question 6 - 2021 - Paper 1
Question 6
6. 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:6. Diesel oil is a mixture of hydrocarbons that can be obtained from crude oil - Edexcel - GCSE Chemistry Combined Science - Question 6 - 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
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:
N2+2O2→2NO2
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 (H2O).
Carbon dioxide is a greenhouse gas, meaning it traps heat in the atmosphere.
When fossil fuels such as diesel oil are burned, the CO2 released contributes to the greenhouse effect by increasing the concentration of gases that absorb and re-radiate infrared radiation emitted from the Earth's surface.
As a result, this leads to global warming and climate change, as the increased heat retention causes rising temperatures around the globe.
