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What are the uses of alkanes?
Use of Alkanes Alkanes are important raw materials of the chemical industry and the principal constituent of gasoline and lubricating oils. Natural gas mainly contains methane and ethane and is used for heating and cooking purposes and for power utilities (gas turbines).
What are the uses for alkenes?
They are used in the synthesis of alcohols, plastics, lacquers, detergents, and fuels as starting materials. For the chemical industry, the most important alkenes are ethene, propene, and 1,3-butadiene.
What are alkanes BBC Bitesize?
Alkanes are saturated hydrocarbons. This means that their carbon atoms are joined to each other by single bonds. This makes them relatively unreactive, apart from their reaction with oxygen in the air – which we call burning or combustion. Butane. Like other homologous series, the alkanes show isomerism.
What are the uses of alkanes alkenes and alkynes?
They are mostly used for heating, cooking, and electricity generation. The alkanes which have a higher number of carbon atoms are used for surfacing roads. Alkenes or unsaturated hydrocarbons are formed by double or triple bonding between carbon atoms. They are used for manufacturing of plastic or plastic products.
What is alkanes write any two uses of alkanes?
Alkanes are used in cooking and heating as they are combustible substances. Natural gas is composed of methane and ethane which are used as fuel. Alkanes are used as lubricating oils in chemical factories. Alkanes are used for the electricity generation processes.
Why are alkanes used as fuels?
Alkanes will react with Oxygen if they are given sufficient Activation Energy. This will result in a highly Exothermic reaction, producing Carbon Dioxide and Water, which makes Alkanes very useful as fuels.
How do we use alkanes in daily life?
Common usage of alkanes in natural gas
- heating/cooling house (air conditioning)
- ovens.
- fireplaces.
- outdoor lights.
- Fuel cells.
- plastic products (from cracking of ethane, propane)
- fertilizer (in Haber-Bosch process for production of ammonia, hydrogen comes from methane)
- fabric.
Why are alkenes used for plastics?
Alkene polymers and plastics Polythene, made from ethene, is very cheap and strong, and is easily molded. It is used to make, for example, plastic bags, bottles, and buckets. Polypropene, made from propene, has strong fibers and a high elasticity.
Are alkanes or alkenes more flammable?
Answer: Alkenes are more reactive than alkanes, as a result of the presence of a carbon double bond. When an alkene burns, it therefore needs a rapid supply of oxygen. However, if the oxygen is not supplied fast enough, the alkene will burn with a limited oxygen supply and incomplete combustion will result.
Why alkanes are used as fuels?
Alkanes are used as fuel because there is the evolution of a large amount of heat during combustion. Here, the purpose is to obtain as much heat as possible from a given mass of fuel.
What are the uses of alkanes Class 11?
Uses of alkanes are: Alkanes are used in cooking and heating as they are combustible substances. Natural gas is composed of methane and ethane which are used as fuel. Alkanes are used as lubricating oils in chemical factories. Alkanes are used for the electricity generation processes.
What uses of alkane 11th class?
Uses of Alkanes (3) Catalytic oxidation of alkanes gives alcohols, aldehydes and carboxylic acids. (4) Higher alkanes in form of gasoline, kerosene oil, diesel, lubricating oils and paraffin wax are widely used.
What do alkanes have in common with each other?
This means that they have similar chemical properties to each other and they have trends in physical properties. For example, as the chain length increases, their boiling point increases. The general formula means that the number of hydrogen atoms in an alkane is double the number of carbon atoms, plus two.
What is cracking alkanes?
Cracking is used to convert long alkanes into shorter, more useful hydrocarbons. The alkanes form a homologous series. Like all homologous series, the alkanes: The general formula for the alkanes is CnH2n+2, where n is the number of carbon atoms in the molecule.
What is an alkane hydrocarbon?
Alkanes are saturated hydrocarbons. This means that their carbon atoms are joined to each other by single bonds. This makes them relatively unreactive, apart from their reaction with oxygen in the air – which we call burning or combustion.
Why do alkanes show isomerism?
This makes them relatively unreactive, apart from their reaction with oxygen in the air – which we call burning or combustion. Like other homologous series, the alkanes show isomerism. This means that their atoms can be arranged differently to make slightly different compounds with different properties.