chemical properties of alkane
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Allanes exist as solid liquid or gases.. Branched alkanes normally exhibit lower boiling points than unbranched alkanes of the same carbon content. This occurs because of the greater van der Waals forces that exist between molecules of the unbranched alkanes. These forces can be dipole‐dipole, dipole‐induced dipole, or induced dipole‐induced dipole in nature. The unbranched alkanes have greater van der Waals forces of attraction because of their greater surface areas.
Solid alkanes are normally soft, with low melting points. These characteristics are due to strong repulsive forces generated between electrons on neighboring atoms, which are in close proximity in crystalline solids. The strong repulsive forces counterbalance the weak van der Waals forces of attraction.
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