Chemistry 1A - Products from Rocks: Crude Oil 0.0 / 5 ? ChemistryCrude oil, cracking and hydrocarbonsGCSEAQA Created by: ex-JohnsonfamilyCreated on: 11-03-15 20:35 What is crude oil and what is it an example of? Crude oil is formed over millions of years from the buried remains of plants and animals - it's a fossil fuel. 1 of 38 Crude oil is a mixture of...? Hydrocarbons. 2 of 38 What is a mixture? A mixture consists of two or more elements or compounds that aren't chemically bonded to each other. 3 of 38 Crude oil is a mixture of many different compounds. But what type of compounds are they? Hydrocarbon molecules. 4 of 38 What are hydrocarbons made of? Carbon and hydrogen atoms. 5 of 38 The parts of a mixture can be separated out by physical methods. Name an example. Crude oil can be split up into its seperate parts (called fractions) by fractional distillation. 6 of 38 Name all 7 fractions of crude oil from the bottom of the fractioning column to the top. 1. Bitumen 2. Oil 3. Diesel 4. Kerosene 5. Naphtha 6. Petrol 7. Refinery Gas 7 of 38 What is the boiling point of Oil? 340 Degrees 8 of 38 What is the boiling point of diesel? 250 Degrees 9 of 38 What is the boiling point of Kerosene? 180 Degrees 10 of 38 What is the boiling point of naphtha? 110 Degrees 11 of 38 What is the boiling point of petrol? 40 Degrees. 12 of 38 What is the length of the refinery gas molecule? 3. 13 of 38 What is the length of the petrol molecule? 8 14 of 38 What is the length of the Naphtha molecule? 10 15 of 38 What is the length of the Kerosene molecule? 15 16 of 38 What is the length of the Diesel molecule? 20 17 of 38 What is the length of the Oil molecule? 35 18 of 38 What is the length of the Bitumen molecule? 40. 19 of 38 All of the fractions of crude oil are hydrocarbons named what? Alkanes. 20 of 38 What are alkanes made up of? Chains of carbon atoms surrounded by hydrogen atoms. 21 of 38 What is the difference between the alkanes? They each have different lengths. 22 of 38 Name the first four alkanes. Methane, Ethane, Propane, Butane. 23 of 38 What is the formula for Methane? CH4. 24 of 38 What is the formula for Ethane? C2H6. 25 of 38 What is the formula for Propane? C3H8. 26 of 38 What is the formula for Butane? C4H10 27 of 38 How many bonds does Carbon form? 4. 28 of 38 How many bonds does Hydrogen form? 1. 29 of 38 The alkanes have formed single binds with as many other atoms as they can. What does this mean? They are saturated. 30 of 38 What is the general formula for an alkane? CnH2n+2 31 of 38 Using the general formula for alkanes, how many hydrogen atoms would an alkane with 40 carbon atoms have? 82. 32 of 38 Complete the sentence: The shorter the molecule of a hydrocarbon, the less... ...viscous and more runny the hydrocarbon is. 33 of 38 Complete the sentence: The shorter the molecule of a hydrocarbon, the lower the... ...boiling point of the hydrocarbon. 34 of 38 Complete the sentence: The shorter the molecule of a hydrocarbon, the more... ...flammable the hydrocarbon is. 35 of 38 What is the common use for refinery gas? Bottled gas. 36 of 38 Why is refinery gas used for it's purpose? It has the lowest boiling point of all the hydrocarbon fractions. It is a gas at room temperature. 37 of 38 Is oil renewable or non-renewable? Non-renewable. 38 of 38
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