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
The correct statement is C: they have the same general formula. Alkane compounds in the homologous series have the same general formula, which can be expressed as CₙH₂ₙ₊₂, where n is the number of carbon atoms.
Step 3
Complete the balanced equation for the reaction.
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Answer
The balanced equation is:
N2+2O2→2NO
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 combustion of diesel oil produces gases like carbon dioxide (CO₂) and water vapor (H₂O), both of which are greenhouse gases. The greenhouse effect occurs when these gases trap heat in the Earth's atmosphere, preventing it from escaping into space, which leads to a rise in global temperatures. Moreover, the accumulation of these gases enhances the natural greenhouse effect, causing climate change and environmental impacts.
