Hydrocarbons 0.0 / 5 ? ScienceCrude oil and fuelGCSEAQA Created by: pocky.sticksCreated on: 13-09-19 14:22 What are hydrocarbons? Substances made up of only hydrogen and carbon. 1 of 24 What process is used to break down hydrocarbons? Cracking. 2 of 24 What process is used to separate hydrocarbons? Fractional Distillation. 3 of 24 What is the general formula of an alkane? CnH2n+2 4 of 24 What is the general formula of an alkene? CnH2n 5 of 24 What is the difference between an alkene and an alkane? Alkenes have a double bond between their carbon atoms, alkanes have a single bond. 6 of 24 Name the different fractions obtained from separating crude oil. Bitumen, Diesel, Kerosene, Naphtha, Petrol, Petroleum Gases. 7 of 24 What is bitumen used for? Waterproofing, lubricant, tarmac. 8 of 24 What is diesel used for? Fuel for lorries, cars, and vans. 9 of 24 What is kerosene used for? Aircraft fuel 10 of 24 What is naphtha used for? Manufacture of plastics, creation of chemicals. 11 of 24 What is petrol used for? Fuel for cars. 12 of 24 What are petroleum gases used for? Domestic heating and cooking. 13 of 24 What are the properties for short chain hydrocarbons? High volatility, high flammability, low boiling point, low viscosity. 14 of 24 What are the properties for long chain hydrocarbons? Low volatility, low flammability, high boiling point, high viscosity. 15 of 24 Where are short chain hydrocarbons collected? At the top of the fractioning column. 16 of 24 Where are long chain hydrocarbons collected? At the bottom of the fractioning column. 17 of 24 What are alkanes? Fully saturated hydrocarbons. 18 of 24 What is complete combustion? Complete combustion occurs when fuel burns completely in oxygen. 19 of 24 What is incomplete combustion? Incomplete combustion occurs when fuel burns in limited oxygen. 20 of 24 State the symbol equation for complete combustion. CH4 + O2 -----> CO2 + H2O 21 of 24 State the word equation for complete combustion. Methane + Oxygen -----> Carbon Dioxide + Water 22 of 24 State the symbol equation for incomplete combustion. CH4 + O2 -----> CO + H2O 23 of 24 State the word equation for incomplete combustion. Methane + Oxygen -----> Carbon Monoxide + Water 24 of 24
Comments
No comments have yet been made