Basque PAU Biology Practice Questions - Basque Country PAU Biology Examination - UPV EHU (2o Bachillerato 2026) Exam

Why does liquid water have an exceptionally high specific heat capacity compared to other small covalent molecules?

Extensive intermolecular hydrogen bonding absorbs thermal energy before increasing kinetic movement. Covalent bonds within water molecules continuously break and reform at room temperature. Water molecules form ionic complexes that retain thermal kinetic energy efficiently. High molecular mass allows water to store vast amounts of rotational kinetic energy.

Correct Answer:

Extensive intermolecular hydrogen bonding absorbs thermal energy before increasing kinetic movement.

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