Alkanes and Cycloalkanes - What are the Physical Properties of Alkanes and Cycloalkanes?

4 important questions on Alkanes and Cycloalkanes - What are the Physical Properties of Alkanes and Cycloalkanes?

What is the most important property of alkanes?

Between carbon and hydrogen there is a electronegativity of 0,4 what makes it a nonpolar covalent bond.
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Describe the physical properties boiling- and melting point of alkanes.

In general the longer the chain the higher the melting- and boiling point.
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What are dispersion forces?

Dispersion forces are weak intermolecular forces resulting from temporary induced dipoles.
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Why are the physical properties of constitutional isomers different from each other?

With more branching the surface area decreases, resulting in the decrease of dispersion interactions and lower boiling- and melting temperatures.
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