Volatility refers to the tendency of a substance to vaporize or evaporate at a given temperature. The higher the volatility, the easier it is for a substance to transition from a liquid to a gas.

Factors affecting volatility:

* Intermolecular forces: Weaker intermolecular forces lead to higher volatility. Benzene has weaker London dispersion forces compared to hexane due to its planar structure and delocalized electrons.

* Molecular weight: Lower molecular weight substances tend to be more volatile. Hexane has a higher molecular weight than benzene.

Comparison:

* Benzene:

* Weaker intermolecular forces (London dispersion forces)

* Lower molecular weight (78 g/mol)

* Hexane:

* Stronger intermolecular forces (London dispersion forces)

* Higher molecular weight (86 g/mol)

Conclusion:

Due to its weaker intermolecular forces and lower molecular weight, benzene is more volatile than hexane. This means that benzene will evaporate more readily at a given temperature.