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).
These 3 series of saturated hydrocarbon are: linear alkanes, branched alkanes, cycloalkanes.
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.
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
Homologous structures (Not to be confused with Homologous pairs)
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).
These 3 series of saturated hydrocarbon are: linear alkanes, branched alkanes, cycloalkanes.
Well there is Carbon monoxide, And other types of gases that come out of organisms like for example, Cows, Humans, What goes into trees, All sorts of things. Enjoi :) - Cameron
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.
CH2
They are said to be homologous because they have similar structures.
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
Ester
methane is a compound belonging to the homologous series known as Alkanes, containing a single Carbon atom covalently bonded to 4 hydrogen atoms, giving us the formula CH4
Alkanes
Chemical compounds (organic) placed in a homologous series have a general chemical formula. The common example is alkenes.
Homologous structures (Not to be confused with Homologous pairs)