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Is cracking hydrocarbon molecules an endothermic or exothermic reaction?
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Cracking a raw egg endothermic or exothermic?
Endothermic because the egg is absorbing the heat.
What is achieved in the process of cracking?
For anyone who has seen the previous answer ignore the immature remark. "Fuels made from oil mixtures containing large hydrocarbon molecules are not efficient. They do not flow easily and are difficult to ignite. Crude oil often contains too many large hydrocarbon molecules and not enough small hydrocarbon molecules to meet demand - this is where cracking comes in. Cracking allows large hydrocarbon molecules to be broken down into smaller, more useful hydrocarbon molecules. Fractions containing large hydrocarbon molecules are vaporized and passed over a hot catalyst. This breaks chemical bonds in the molecules, and forms smaller hydrocarbon molecules. Cracking is an example of a thermal decomposition reaction." Sources:http://www.bbc.co.uk.education2020.us/
What type of reaction is cracking an example of?
Thermal Decomposition
Why are cracking large hydrocarbon molecules more useful than the original large molecules?
There is more demand for smaller molecules because they can make up more fuels and plastics. There is less demand for the larger molecules.
Breaking of a larger hydrocarbon molecule into a smaller one by heating in the presence of a catalyst is called?
Cracking , Cracking is the name given to breaking up large hydrocarbon molecules into smaller and more useful bits. This is achieved by using high pressures and temperatures without a catalyst, or lower temperatures and pressures in the presence of a catalyst.
Cracking a raw egg endothermic or exothermic?
Endothermic because the egg is absorbing the heat.
What is achieved in the process of cracking?
For anyone who has seen the previous answer ignore the immature remark. "Fuels made from oil mixtures containing large hydrocarbon molecules are not efficient. They do not flow easily and are difficult to ignite. Crude oil often contains too many large hydrocarbon molecules and not enough small hydrocarbon molecules to meet demand - this is where cracking comes in. Cracking allows large hydrocarbon molecules to be broken down into smaller, more useful hydrocarbon molecules. Fractions containing large hydrocarbon molecules are vaporized and passed over a hot catalyst. This breaks chemical bonds in the molecules, and forms smaller hydrocarbon molecules. Cracking is an example of a thermal decomposition reaction." Sources:http://www.bbc.co.uk.education2020.us/
Why is cracking useful?
cracking is useful because large hydrocarbon molecules are broken into smaller ones. And these are needed for petrol and are more reactive.
What type of reaction is cracking an example of?
Thermal Decomposition
Why are cracking large hydrocarbon molecules more useful than the original large molecules?
There is more demand for smaller molecules because they can make up more fuels and plastics. There is less demand for the larger molecules.
Breaking of a larger hydrocarbon molecule into a smaller one by heating in the presence of a catalyst is called?
Cracking , Cracking is the name given to breaking up large hydrocarbon molecules into smaller and more useful bits. This is achieved by using high pressures and temperatures without a catalyst, or lower temperatures and pressures in the presence of a catalyst.
What is the term given to breaking of long hydrocarbon chains?
cracking (and when done with a catalyst, it's called catalytic cracking)
What is cracking used for?
The cracking is used to breaks down big hydrocarbon into smaller ones and make more useful.
What is the type of reactive intermediate formed during thermal cracking?
The type of reactive intermediate formed during thermal cracking is a free radical. This occurs when high temperatures break the carbon-carbon bonds in the hydrocarbon molecules, resulting in the formation of highly reactive and unstable free radicals that can undergo further reactions to form smaller hydrocarbon fragments.
What type of reaction is cracking?
Cracking is the name given to breaking up large hydrocarbon molecules into smaller and more useful bits. This is achieved by using high pressures and temperatures without a catalyst, or lower temperatures and pressures in the presence of a catalyst. The source of the large hydrocarbon molecules is often the naphtha fraction or the gas oil fraction from the fractional distillation of crude oil (petroleum). These fractions are obtained from the distillation process as liquids, but are re-vaporised before cracking. There isn't any single unique reaction happening in the cracker. The hydrocarbon molecules are broken up in a fairly random way to produce mixtures of smaller hydrocarbons, some of which have carbon-carbon double bonds. One possible reaction involving the hydrocarbon C15H32 might be:
Why is there a carbon cost for for the process of cracking a hydrocarbon?
This is because hydrocarbons are very expensive.x
How is the cracking reaction made faster?
Cracking is a process used in chemistry to break large molecules .It is also called pyrolysis . It produces small molecular wt. compounds . Most chemical reactions are increased by temp, it is already exothermic hence there is no need to enhance it , it would become dangerous and resultant molecules would change. Hence it is not proper to make it faster .
