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Cracking is a process in which larger hydrocarbon molecules are broken down into smaller ones by heat and pressure, often used to produce gasoline. Polymerization is a process in which smaller molecules, called monomers, are chemically joined together to form larger molecules called polymers, used to create plastics and synthetic materials. In summary, cracking breaks molecules apart while polymerization joins molecules together.
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Why is aluminium oxide used whilst carrying out cracking reactions in a laboratory?
Aluminium oxide is used as a catalyst support in cracking reactions because it provides a high surface area for the catalytic reaction to occur, improves heat distribution, and helps in the absorption and desorption of reactants and products. Additionally, the polar nature of aluminium oxide can also enhance the interaction between the catalyst and reactants, leading to increased efficiency in the cracking process.
What is the use of decene?
Decene is commonly used as a building block in the production of detergents, lubricants, and surfactants. It is also used in the manufacturing of plasticizers, synthetic lubricants, and as a chemical intermediate in various industries.
What happens in polymerisation?
Polymerisation is a chemical reaction in which smaller molecules (monomers) are linked together to form larger molecules (polymers). This process usually involves the breaking of double bonds in the monomer molecules and the formation of new single bonds between them. Polymerisation can occur through various methods, such as condensation polymerisation and addition polymerisation.
What type of bond forms between elements with electronegative differences between 0 and 0.3?
A nonpolar covalent bond forms between elements with electronegative differences between 0 and 0.3. In this type of bond, the shared electrons are equally shared between the atoms, leading to a symmetrical distribution of charge.
Why is porous pot catalyst used in cracking hydrocarbons?
A porous pot catalyst is used in cracking hydrocarbons to provide a large surface area for the reaction to occur, increasing the efficiency of the process. The catalyst helps lower the activation energy required for the cracking reaction, allowing it to proceed at lower temperatures and reducing energy consumption. Additionally, the porous structure of the catalyst allows for better contact between the reactants and the catalyst, enhancing the rate of the reaction.
What is difference between thermal and catalytic cracking?
Thermal CRacking is caused by heat while catalytic cracking is not caused by heat
What are the examples of polymerisation?
polyethylene,polyvinylchloride
How is polymerisation carried out?
There are 2 types:- Addition polymerisation is polymerisation in which monomers are joined across the double bond, for example polyethene. Condensation polymerisation is when water is lost from the two monomers for example the polymerisation of nylon, the two monomers are a diamine and dicarboxylic acid. From the amine an H goes and combines with and OH from the acid to form water. From this reaction, 2 moles of water are lostto form nylon -NH-[ ]-NH-C=O-[ ]-C=O-
What is polymerisation reaction?
Polymerisation is a process of reacting monomer molecules together in a chemical reaction to form three-dimensional networks or polymer chains.
What is electropolymerization?
polymerisation in the presence of an electrical current
What technology is used in the manufacturing of polythene?
Polymerisation
Does cracking knuckles cause arthritus?
No, cracking your knuckles does not cause arthritis. The sound comes from small pockets of gas in the joint releasing. Studies have not found a direct link between knuckle cracking and arthritis.
What process joins two monomers?
Addition polymerisation
When monomers join up the process is called?
polymerisation.
Differences between 1950s and now?
differences between now and then 1905s
Differences between fraud and error?
differences between errors and frauds
What is the difference between jailbreaking and rooting?
Jailbreaking is the term used when cracking an iOS Device while Rooting is the term used for cracking an Android Device.
