Answer:
Water's high heat of vaporization allows dogs to cool themselves by panting.
Step-by-step explanation:
Vaporization or Evaporation is the process in which the substance is converted into gas (vapors). This is an endothermic reaction and requires energy to be carried out. In dogs this phenomenon is being carried out in order to cool the body.
As the water molecules are evaporated it results in the removal of highly energetic molecules leaving a low energy molecules behind. Hence, cooling is achieved.