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What is the temperature at which a liquid forms bubbles of vapor that break at the surface?
Wiki User
∙ 6y ago
Boiling Point
Wiki User
∙ 11y ago
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Bubbles escaping the surface of a heated liquid?
Uually the only time you see this is in old glass. This is just old glass that was made by a less refined process and occasionally bubbles appeared in the glass. Some people actually search for windows of this vintage.
What is the force needed to overcome intermolecular attractions and break through the surface of a liquid or spread out of the liquid?
surface tention
Do the fastest or slowest moving molecules break away from the surface of liquid water to form water vapor?
The fastest moving water molecules will break away from the surfrace of the water to form water vapor, they have the energy to overcome the attractive forces between molecules.
When does a liquid turn to a gas?
A liquid turns into a gas once it reaches its boiling point which is the temperature that a liquid turns into a gas. Every liquid has a different boiling point although some are similar.Add. But a liquid does not have to boil to turn into a gas. Water evaporates from the surface of a puddle, a lake, or the sea. This mechanism is that not all the molecules in a fluid are at the same temperature, and the most energetic ones break through the surface tension and escape.In the extreme, water may sublime directly from the ice phase to the vapour phase without passing through a liquid phase. The same is true of several common items such as iodine, and CO2.Have a look at 'triple point' in "wikipedia".
Why does water steam before its boiling point?
As the temperature increases and the water approaches its boiling condition, some molecules attain enough kinetic energy to reach velocities that allow them to momentarily escape from the liquid into the space above the surface, before falling back into the liquid. Further heating causes greater excitation and the number of molecules with enough energy to leave the liquid increases. As the water is heated to its boiling point, bubbles of steam form within it and rise to break through the surface. Considering the molecular structure of liquids and vapours, it is logical that the density of steam is much less than that of water, because the steam molecules are further apart from one another. The space immediately above the water surface thus becomes filled with less dense steam molecules. When the number of molecules leaving the liquid surface is more than those re-entering, the water freely evaporates. At this point it has reached boiling point or its saturation temperature, as it is saturated with heat energy. Basically steam is invisible. What your seeing is not steam. Its the point at which the warm air (from the kettle) meets the cold air.
What is cooking a liquid just below boiling point and bubbles rise slowly and break before reaching surface?
Simmering.
Bubbles escaping the surface of a heated liquid?
Uually the only time you see this is in old glass. This is just old glass that was made by a less refined process and occasionally bubbles appeared in the glass. Some people actually search for windows of this vintage.
True of False Boiling occurs when a liquid changes to a gas below its surface as well as on the surface?
False. If you watch water boil in a transparent container, you will see bubbles of gas form on the sides and bottom. They break loose and rise to the surface.
What is the term for how difficult it is to stretch or break the surface of a liquid?
surface tension
Process that turns a liquid to a gas-occurs only at the surface?
Liquids evaporate when a molecule gathers enough kinetic energy to break the liquid bonds and vaporize. The most excited molecules tend to be at the surface, so this is where most evaporation takes place. However if you hat the bottom of a liquid, the bubbles, evaporation , can happen at the contact site.
What is the force needed to overcome intermolecular attractions and break through the surface of a liquid or spread out of the liquid?
surface tention
What liquid can break surface tension?
Soap, detergents.
Why liquid is liquid?
because the bonds break up giving it a liquid form, this happens at room temperature
Measure of how difficult it is to stretch or break the surface of a liquid?
viscosity
What must particles in a liquid overcome in order to break away from the surface and evaporate?
surface tension
Why is a liquid?
because the bonds break up giving it a liquid form, this happens at room temperature
How are boiling and evaporating different?
Boiling specifically means that the liquid's partial vapor pressure is equal to the atmospheric pressure.From Wikipedia: "Boiling is the rapid vaporization of a liquid, which occurs when a liquid is heated to its boiling point, the temperature at which the vapor pressure of the liquid is equal to the pressure exerted on the liquid by the surrounding environmental pressure."Simple evaporation is a slow process where a liquid turns to cool vapor at temperatures below the boiling point. Boilingis a rapid process where a liquid turns to hot vapor when heated to the boiling point. Boiling involves the formation of bubbles of this hot vapor, which rise to the surface of the liquid, where they break and release the vapor.
