In our daily routines, we often encounter substances like sanitizer and water, both of which can evaporate under the right conditions. However, have you ever wondered why sanitizer seems to evaporate more readily when poured onto your hand compared to water? Let's delve into the science behind the differential evaporation rates of sanitizer and water. Composition Matters: One of the key factors influencing the evaporation rates of sanitizer and water is their composition. Sanitizer typically contains alcohol, which is a volatile compound, meaning it evaporates quickly at room temperature. On the other hand, water, while capable of evaporation, lacks the volatile properties of alcohol. Surface Area and Evaporation: When sanitizer is poured onto your hand, it spreads out, increasing the surface area exposed to the air. This larger surface area allows for more rapid evaporation of the alcohol content in the sanitizer. In contrast, when sanitizer is stored in a bottle, even if slightly