Evaporation describes the process of a liquid changing to a gas. Usually, the surface parts of a pool of liquid vaporize into a vapor or gas first. Evaporation occurs in both cold and warm liquids.Know More
Warmer liquids evaporate quicker than cooler liquids. This is due to the fact that adding more energy to a liquid causes some of the molecules to become energized enough to release the liquid into the air. An example of this is when a pot of water boils on a stove. Once the water gets hot enough, liquid water converts and changes phases into a gas; if enough of the water is evaporating, it becomes visible as steam. Cold water can also evaporate.
Molecules in a liquid actually have different levels of energy. When this happens, some of the water converts into gas; that is why wind can increase evaporation rates. Evaporation also removes heat from a system, which is why when water evaporates on someone’s skin, they then feel cooler.
Evaporation is the mechanism that drives the water cycle. When water evaporates from the oceans, it rises into the atmosphere and eventually falls again as rain, which is then fresh water since the evaporating water loses all of the salt from the oceans.Learn More
Air is a homogeneous mixture. In a homogeneous mixture, all of the components are uniformly distributed. This type of mixture contains only one phase of matter: gas, liquid or solid.Full Answer >
Pramoxine hydrochloride is used as a topical anesthetic to relieve mild pain and itching. The drug was discovered in 1953 at Abbott Laboratories. The trade name of pramoxine hydrochloride is Pramocaine.Full Answer >
Saline solutions are sterile solutions of salt and water that are easy to create. To make a saline solution, place 1 cup of water and 1/2 teaspoon of table salt into a sauce pot. Boil the water for 15 minutes, and allow it to cool completely before storing the solution in a sterile jar.Full Answer >
Suspension is when particles of solid material are held within a fluid. The particles are large enough to not dissolve in the fluid, and they separate easily when disturbed. Particles may settle to the bottom of the container when left undisturbed.Full Answer >