0
Is the change of phase from a liquid to a gas at any temperature?
Wiki User
∙ 10y ago
Each element and compound has its own temperature at which the phase change from liquid to gas (evaporation) occurs. For instance, the evaporation of water occurs at 100oC, whereas the same for (liquid) oxygen is -182.96oC.
Some substances sublimate, i.e. that change from solid to gas without going through the liquid state/phase first; e.g. (solid) carbon dioxide.
Wiki User
∙ 10y ago
Add your answer:
Earn +20 pts
Why the matter in sublimation converted from solid to vapor without passing in liquid phase?
The phase of any given substance is governed by two factors, temperature and pressure. Everything has a liquid phase, in the right temperature range if the pressure is high enough. If the pressure is not high enough, you get sublimation.
What are the terms describing the changes from gas to solid?
The change from gas to liquid is condensation. The change from liquid to solid is freezing or solidification. The change from solid to liquid is melting. The change from liquid to gas is vapourisation or boiling. The collective term that can apply to any one of these is a phase change.
What is a latent heat energy levels?
Latent heat- the amount of heat required by a system/ substance to change phase. It's also heat absorbed or radiated during a change of phase at a constant temperature and pressure.
How do you know that particles in a gas have more energy than particles of same substance as a liquid or a solid?
We know that for any given substance, and at a given pressure, the gas phase exists at a higher temperature than the liquid phase, which exists at a higher temperature than the solid phase. And temperature measures heat energy per molecule or atom, hence, gas particles have more energy than particles of the same substance in their liquid or solid phase.
Are there any half liquid half solid elements on the periodic table?
The physical properties of any element is defined by two factors, pressure and temperature. All natural pure elements found on earth can exist in all phases. To change the phase (liquid, solid, gas) you can change either the pressure or temperature. The phase indicated on the periodic table is the element's ground state at 1 ATM (a unit of pressure) and 20oC or 293 K (Kelvin, where 0k= absolute zero, when all molecules stop moving). This URL explains phase diagrams http://en.wikipedia.org/wiki/Phase_diagram
When heat is added to a liquid at the boiling temperature it converts the liquid into a gas at the same temperature because?
The additional heat, called "enthalpy" completes the phase change, by changing the arrangement of the molecules in the existing environment, not the temperature. The energy must be removed from a gas to cause condensation into liquid, and from a liquid to cause solidification (freezing). Conversely, it is added when changing a solid to a liquid or a liquid to a gas. At a certain temperature (critical temperature), the process happens spontaneously because the phase boundary disappears.
Does matter turn from liquid to gas?
This change of phase is called vaporization.
What the definition of freezing point?
The freezing point is the temperature at which any liquid turns to a solid. The temperature depends on the properties of the liquid involved. For example:Mercury Freezes at 38.8290 degrees CelsiusWater freezes at 0 degrees CelsiusLiquid Tungsten freezes at 3,422 degrees Celsius
What changes a gas into a liquid?
All gasses will become a liquid at either a certain temperature or pressure, as gas is 1 of the 4 states of matter. Any gas that undergoes a condensation phase change
Why does the temperature not change during a phase change?
During the change of state, the molecules of a substance absorb energy to overcome the strong intermolecular force of attraction between them. Hence the heat energy which we supply is absorbed by them for this purpose. So change in temperature is not observed.
Why the matter in sublimation converted from solid to vapor without passing in liquid phase?
The phase of any given substance is governed by two factors, temperature and pressure. Everything has a liquid phase, in the right temperature range if the pressure is high enough. If the pressure is not high enough, you get sublimation.
Melting point of water?
The melting point of a substance is the temperature at which solid state of a substance co exist in equilibrium with its liquid state. It is also called the freezing point (melting is the same process as freezing, just in the opposite direction, and so the temperature is identical).See Web LinksSee the Web Links for "Answers.com: Melting point" below for more information.The melting point is a point where a solid begins to heat and lose mass. It generally changes from a solid state to a liquid state.
If a liquid is frozen what is the speed of it melting?
The rate of a phase change, such as from solid to liquid, is dependent upon the specific heat of the material, the difference between the solid's core temperature and the room's ambient temperature and the application of any external energy sources such as a light bulb or heating mantle.
When a solid melts does its temperature not change.?
The boiling point of any given liquid will remain constant as long as the air pressure remains constant. Ambient air pressure or any other pressure on the liquid will affect the boiling point. In a vacuum, everything boils at a lower temperature.
What substance has particles that are close together but can change shape depending on its container?
ANY substance can do that as long as it is in the liquid phase.
What are the terms describing the changes from gas to solid?
The change from gas to liquid is condensation. The change from liquid to solid is freezing or solidification. The change from solid to liquid is melting. The change from liquid to gas is vapourisation or boiling. The collective term that can apply to any one of these is a phase change.
What is a latent heat energy levels?
Latent heat- the amount of heat required by a system/ substance to change phase. It's also heat absorbed or radiated during a change of phase at a constant temperature and pressure.
