Extremadura PAU Biology Practice Questions - Extremadura PAU Biology Examination - UEx (Biología 2o Bachillerato 2026) Exam

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Which physicochemical property of water enables homeothermic organisms to maintain a stable body temperature through sweat evaporation?

High heat of vaporization caused by extensive intermolecular hydrogen bonding. Low boiling point resulting from nonpolar covalent interactions. High density in the solid state relative to the liquid state. Low surface tension facilitating hydrophobic solute aggregation.

Correct Answer:

High heat of vaporization caused by extensive intermolecular hydrogen bonding.

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