Alkanes
- Created by: Jamie Thomas
- Created on: 05-03-14 17:38
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- Alkanes
- Hydrocarbon
- A compound consisting of only hydrogen and carbon.
- Crude oil
- Crude oil is fractionally distilled to get the separate hydrocarbons into the different chain lengths
- Heated to 400 degrees then as it cools the separate hydrocarbons condense at different stages
- Unsaturated Hydrocarbons
- Alkanes
- Cycloalkanes
- Carbons Tetrahedral Shape
- There are 4 bonding pairs
- This results in a tetrahedral shape and a bond angle of 109.5
- Van der Waals
- Boiling point will increase as no. C increase as there are more Van Der Waals as there are more electrons
- Branched chain alkanes
- Lower boiling points as the brached chains result in less points of contact so Van der Waals forces
- Combusion of Alkanes
- The complete combustion of Alkanes releases Carbon Dioxide and Water
- The incomplete combustion of Alkanes releases Carbon Monoxide and water
- Carbon Monoxide is extremely dangerous as it stops haemoglobon from carrying oxygen around the body
- Catalytic Cracking
- Zeolite, 450 degrees
- Short chain Alkanes used as fuels
- Short-chain Alkenes used as polymer production
- Used to break down long chain saturated hydrocarbons to form a mixturre of short chain alkanes and alkenes
- Petroleom
- Branched chains hydrocarbons are more efficient burners
- Radical
- A species with an unpaired electron
- Hydrocarbon
- Catalytic Cracking
- Zeolite, 450 degrees
- Short chain Alkanes used as fuels
- Short-chain Alkenes used as polymer production
- Used to break down long chain saturated hydrocarbons to form a mixturre of short chain alkanes and alkenes
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