Here's why:
* Kinetic Energy and Temperature: Kinetic energy is the energy of motion. The higher the temperature of a liquid, the faster its molecules move, and the higher their kinetic energy.
* Evaporation: Evaporation occurs when molecules at the surface of a liquid have enough kinetic energy to overcome the attractive forces holding them in the liquid phase. They then escape into the gas phase.
* Distribution of Energies: Within a liquid, molecules have a range of kinetic energies. Those with the highest energy are the most likely to break free from the liquid.
In summary: The particles with the most energy, which are typically the fastest-moving ones, will evaporate first.