CH2
Alkanes
Alkanes have as general formula CnH2n+2 . C15H30 is therfore not an alkane it is an alkene (CnH2n) with one double bond.
An acyclic organic molecule is an open chain compound, for example alkanes and acyclic aliphatic compounds. A cyclic organic molecule is a molecule in which a series of atoms connect to form a loop or ring.
Alkanes have single bonds while Alkenes have double bonds.CnH2n+2 is the general formula for alkanes.CnH2n is the general formula for alkenes.
Firstly, remember that a large member of any series is likely to have a higher boiling point than a small member of another series. Given that we assume we are dealing with similar sized molecules, alkanes will have the lowest bp's, as the molecules are non polar so we have only van der Waals forces. Ketones will come next as the carbonyl group is polar so there will also be dipole-dipole interactions. Alcohols and carboxylic acids come next, in that order, as they also have hydrogen bonds.
These 3 series of saturated hydrocarbon are: linear alkanes, branched alkanes, cycloalkanes.
Alkanes
For alkanes the general chemical formula is CnH2n+2.
All the families of organic compounds exist as a homologous series (A series having a difference of 'CH2' unit between two consecutive members) the main homologous series-es are Alkanes, Alkenes, Alcohols and Carboxylic acids (Fatty acids).
the flammability of alkanes decreases as the hydrocarbon chains increase in length their evapouration rates decrease as longer chained molecules have higher boling points so temperatures must be high for them to evaporate therefore there is no fumes or vapours for longer chained alkanes at room temp like nonane and so on these hydrocarbons need higher temp to produce vapours n therefore will not burn with just a match
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Alkanes have as general formula CnH2n+2 . C15H30 is therfore not an alkane it is an alkene (CnH2n) with one double bond.
"Propane" is the name of the third hydrocarbon in the alkanes series and has the formula C3H8. I think perhaps you mean "profane"? Kung Fu Tzu
The series of whole numbers increment by 1, so the next whole number after 100,000 is 100,001
Porridge
An acyclic organic molecule is an open chain compound, for example alkanes and acyclic aliphatic compounds. A cyclic organic molecule is a molecule in which a series of atoms connect to form a loop or ring.
methane is the first (and most simple) of the homologous series known as alkanes. It can be formed many ways of which some are --> i) catalytic cracking --> in this process large alkanes are broken down into smaller simpler alkanes and alkenes (of which methane is one) ii) biogas/manure --> in the process of fermentation or anaerobic digestion of manure, about 50% to 75% of the gas released is Methane gas iii) fractional distillation of crude oil/petroleum --> methane is obtained in the top fraction in the fractional distillation of crude oil or petroleum.