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Why does isomerisation turn straight chain alkanes into alkanes with lower boiling temperature?
Isomerisation causes straight chain alkanes to become branched alkanes which prevents the chains from moving to close proximities of each other. This reduces the van der Waal's intermolecular forces between chains so less energy is needed to overcome the forces and thus a lower boiling point.
Do alkanes contain covalent bonds?
Yes, alkanes contain covalent bonds. Covalent bonds are formed by the sharing of electrons between atoms in a molecule, and in alkanes, carbon atoms form covalent bonds with hydrogen atoms to create a chain-like structure.
How does the boiling point of a hydrocarbon change as its carbon chain length increases?
Generally speaking, boiling points increase as carbon chain length increases. This is because there are more atoms present in the hydrocarbon molecule and therefore more intermolecular forces (eg Van der Waals') that must be overcome. In addition the now heavier molecule requires greater energy (heat) to make the phase change to a gas. However, branching decreases boiling point; branched hydrocarbons cannot pack together as closely as unbranched ones, and so intermolecular forces are less strong. So, for example, the bp is higher for butane than 2-methylpropane (even though they contain the same number of C and H atoms).
What are alkane liquids that are continuous chains?
At normal pressure, the alkanes pentane (C5H12) through decane (C10H22) are liquids. Alkanes are organic compounds consisting of a single carbon chain of single covalently bonded carbon atoms surrounded by hydrogen atoms.
How does the volatility of a hydrocarbon change as its carbon chain length increases?
As the carbon chain length of a hydrocarbon increases, its volatility generally decreases. This is because longer carbon chains have stronger intermolecular forces, such as van der Waals forces, which make it harder for the molecules to escape into the gas phase. Shorter chain hydrocarbons are typically more volatile and have lower boiling points compared to longer chain hydrocarbons.
Why does viscosity go on increasing with increasing chain length of straight-chain alkanes but for isomeric alkanes viscosity increase with branching?
Viscosity increases with increasing chain length of straight-chain alkanes while that for isomeric alkanes increase with branching because of the difference in the number of rings contained within their hydrocarbons.
What are short chain alkanes?
Cx = the number of carbon atoms in the molecule. Methane would be C1.According to the EPA (http://www.epa.gov/sites/production/files/documents/1999polychloroalkanes.pdf), "The normal paraffin fractions that are most commonly used in the manufacture of polychlorinated alkanes are short chain (C10 to C13, average C12), intermediate chain (C14 to C19, average C15), and long chain (C20 to C30, average C24) fractions." I've also seen people state any alkane between C2 and C4 - all the alkanes whose names don't contain the number of carbon atoms in their longest chain, written in Greek - is a short chain alkane, and another of our esteemed members defines them as alkanes from C2 to C6. IOW, what a short chain alkane is depends on the branch of chemistry you practice; a chemist in a polymer lab has a different view of the world than one in a fuels lab.Methane is not a short chain alkane because it isn't a chained alkane; chains have multiple links, which in alkanes are carbon molecules.
Is wax heterogenous or homogenous mixture?
Wax is a generally considered as a homogenous mixture of several different longer-chain alkanes, esters and other compounds.
Which compounds have the maximum possible number of hydrogen atoms on their carbon chain?
The alkanes have this feature.The entire group of alkanes has this characteristic.alkane
Hydrocarbons which have only single bonds between carbon atoms?
Alkanes are hydrocarbons that have only single bonds between carbon atoms. They are saturated hydrocarbons with the general formula CnH2n+2, where n represents the number of carbon atoms in the molecule. Alkanes are relatively inert and have straight or branched chain structures.
What is the physical state of the smallest alkanes at room temperature?
Alkanes with a carbon chain of 5 up to 17 are liquids. So the set of liquid alkanes begins with pentane, C5H12.
Why do alkanes get thicker and less runny as the length of the carbon chain increases?
As the length of the carbon chain increases in alkanes, the intermolecular forces (London dispersion forces) between the molecules also increase. These forces cause the molecules to stick together more strongly, making the substance thicker and less runny. Additionally, longer carbon chains have higher molecular weights, leading to increased van der Waals forces that further contribute to the thicker consistency.
Does the longer the chain mean the stronger the chain?
Not necessarily. The strength of a chain is determined by its material, design, and construction rather than just its length. A longer chain may have more links, which could potentially introduce more points of weakness, while a shorter chain made from stronger materials can be more robust. Ultimately, the strength depends on the specific characteristics of the chain, not just its length.
How can you make your chain shorter?
To make your chain shorter, you can remove links or adjust the clasp to create a tighter fit.
Why do the alkanes get thicker and less runny as the length of the carbon chain increase?
This is because the longer the carbon chain, it spreads it out more equally which causes the carbon to get a lot more thicker and less runny Answered by a natural scientist who tries the experiments
Why does isomerisation turn straight chain alkanes into alkanes with lower boiling temperature?
Isomerisation causes straight chain alkanes to become branched alkanes which prevents the chains from moving to close proximities of each other. This reduces the van der Waal's intermolecular forces between chains so less energy is needed to overcome the forces and thus a lower boiling point.
Does diesel have a longer or shorter chain fraction?
Then what? Gasoline? Then the answer is no. Gasoline is C6H12. Diesel is C12H26. Same molecular construction. Just different number of atoms.
