Alkanes
Chapter Name : Hydrocarbons |
Sub Topic Code : 102_11_13_02_13 |
Topic Name : Alkanes |
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Sub Topic Name : Reaction With Steam |
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Introduction
Alkanes consist only of hydrogen and carbon atoms, all bonds are single bonds, and the carbon atoms are not joined in cyclic structures but instead form an open chain. They have the general chemical formula CnH2n+2.
Pre-Requisites:
Alkanes
Activity:
Crude oil.
Real Life Question:
What are Alkanes?
Key Words / FlashCards
| Key Words | Definitions (pref. in our own words) |
|---|---|
| Alkanes | An alkane is a hydrocarbon containing only single carbon-carbon bonds. |
Learning aids / Gadgets
| Gadgets | How it can be used |
|---|---|
| liquefied petroleum gas | A flammable mixture of hydrocarbon gases used as a fuel in heating appliances and vehicles. |
Real life uses :
They are the main components of natural gas; they are normally stored as gases under pressure.
Places to visit :
Chemistry laboratory.
Practical examples around us
| Examples | Explainations |
|---|---|
| Ethane | A chemical compound with chemical formula C2H6. At standard temperature and pressure, ethane is a colorless, odorless gas. Ethane is isolated on an industrial scale from natural gas, and as a byproduct of petroleum refining. Its chief use is as petrochemical feedstock for ethylene production. |
What you learn in Theory:
Alkanes will react with steam in the presence of a nickel catalyst to give hydrogen.
What you learn in Practice:
Natural gas contains primarily methane and ethane, with some propane and butane: oil is a mixture of liquid alkanes and other hydrocarbons.