When you rub sanitizer on your hands, it feels cool because the evaporation of alcohol absorbs heat from your skin. This cooling effect occurs as the sanitizer evaporates and dries off.
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Applying sanitizer to your hands feels cool because the alcohol in it evaporates quickly. As the alcohol evaporates, it absorbs heat from your skin, creating a cooling sensation. This is similar to how water evaporating can cool a surface. The rapid evaporation of the sanitizer’s alcohol is what makes your hands feel cooler as it dries. This cooling effect is a result of the heat energy being used for the evaporation process.
For more CBSE Class 6 Science Curiosity Chapter 8 A Journey through States of Water Extra Questions & Answer:
https://www.tiwariacademy.com/ncert-solutions-class-6-science-curiosity-chapter-8/