What room temperature water usually exists as a liquid rather than a gas due to the...?

Room temperature water exists as a liquid rather than a gas due to the intermolecular hydrogen bonding between water molecules. These bonds create a strong attraction that keeps the molecules close together, maintaining a liquid state. At room temperature, the kinetic energy of the molecules is not sufficient to overcome these bonds completely, preventing water from transitioning into a gaseous state. Thus, water remains predominantly liquid under typical conditions.