What is the escape of gas molecules from the surface of a liquid?
When a liquid becomes a gas the break away from one another?
Asked in Science, Chemistry, Clouds
What process involves a liquid changing to a gas only at its surface?
Asked in Science, Evaporation and Condensation
How is evaporation and boiling different?
In both cases, a phase change from liquid to gas occurs. evaporation normally is associated with a slow process where the liquid molecules, usually on or near the surface of the liquid, gain sufficient energy to overcome atmospheric pressure and the intermolecular forces of the liquid and escape as individual molecules of gas. boiling is usually a more rapid process involving the addition of heat to the liquid until the temperature is = to the boiling point of the liquid. At this point, the vapor pressure overcomes atmospheric pressure and intermolecular forces. In this condition, the liquid molecules not only at or near the surface, but also those within the liquid bulk, begin to vaporize. The result is the familiar bubbles of a boiling liquid. The bubbles are, of course, gas bubbles that escape the liquid as they breach the surface.
Asked in Clouds
How water changes to a gas?
Like all other liquid to gas transitions, liquid water changes to gas: by absorbing energy from its surroundings or by having energy added to it. The molecules in a mass of water will have a distribution of energies, as will the gas above the surface. When a molecule at the surface collides with another molecule of sufficient energy, it can absorb energy from the collision and potentially acquire enough energy to escape from the liquid. If energy is being added to the liquid - as heat or agitation - there are more molecules with sufficient energy to make this happen. Energy can also be added directly to the liquid at the surface in the form radiant energy - such as the sun shining on it. A molecule can absorb this energy directly and thus gain enough energy to escape the surface of the liquid.
Asked in Science, Chemistry, Energy
How much kinetic energy is in a liquid?
Kinetic energy is defined as energy due to motion. The kinetic energy of molecules in a liquid is greater than a solid but less than a gas. Thus, liquid molecules can flow freely whereas solid molecules are fixed in place by chemical bonds. However, liquid molecules are still held together by intermolecular forces into a bulk substance, whereas gas molecules are energetic enough to freely escape surface and intermolecular interactions.
How does evaporation occur in all temperatures?
Evaporation is the process where some of a liquid becomes a gas at temperatures below the boiling point. In other words, its molecules escape the body of the liquid and move freely away, as a gas. An example is when water in a pan evaporates until there is no liquid left in the pan. The reason this happens is because some molecules have high enough energy to escape the surface tension of the liquid. Evaporation results in the liquid becoming cooler. Blowing on the liquid increases the evaporation.
Asked in Chemistry
Why does water vapor rise when liquid water is heated by the sun?
Asked in Chemistry
What is true if a liquid and gas are in equilibrium?
Asked in Chemistry, Science
How do the molecules of solid liquid and gas move?
What happens to the particles of matter when a liquid changes to a gas?
Do molecules in solid move faster than molecules in gas?
Asked in Chemistry
Why is gas easier to compress than a liquid or a gas?
Asked in Science
What advantages do gas molecules have over solid and liquid molecules?
Asked in Planetary Science
How could there be a planet entirely of gas?
There probably couldn't, though if an astrophysicist wants to correct this feel free. The problem is that gas molecules have high velocities. If the mass of the body is high enough to have an escape velocity higher than the gas molecules at its surface, then the pressure in the interior is probably high enough to compress the gas into a liquid or supercritical fluid state.