Here's why:
* Chlorine (Cl₂) is a nonpolar molecule: Chlorine molecules are held together by weak London dispersion forces. These forces are relatively weak compared to the hydrogen bonding present in water.
* Water (H₂O) is a polar molecule: Water molecules form strong hydrogen bonds with each other, requiring more energy to overcome these bonds and reach the boiling point.
Boiling Points:
* Chlorine: -34.04 °C (-29.47 °F)
* Water: 100 °C (212 °F)