Alkanes are primary hydrocarbons, with general formula of CnH2n+2, these can be represented as R-H.
Here n are Number of Carbon atoms, like n= 5 =>
C5H2×5+2 = C5H12 , Pentane
There are different type of physical properties of alkanes which depends on the structure and arrangement of constituent atoms in the Molecule.
Generally it is observed that boiling points of Alkanes Increases, as the number of Carbon atoms Increases, which is due to increase in intermolecular forces between constituent atoms, Carbon and Hydrogen, but it is also effected by branching take place in the structure of the Molecule. As Number of branching Increases , the surface area of Molecule decreases and thus intermolecular forces becomes weak, and boiling point decreases for same Carbon atom containing isomers of the compound.
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