0
Liquid may change into a vapor below the liquid's boiling point (or solid into vapor below the freezing point, think shrinking ice-cubes).
This is a very difficult phenomanon the explain.
The second law of thermodynamics explains that at every moment, the ammount of randomness of all matter in the universe is increasing. This randomness is called entropy. Entropy is a property of matter. The greater the number of locations and positions any given atom may randomly occupy at any given time, the greater that atom's entropy.
This is to say that the molecules in a liquid would prefer to be in the vapor phase because it would increase their entropy. However, they're held down in the liquid phase because of the inter-molecular forces they experience between one another.
If their temperature were higher, they would have enough energy (velocity) to escape the liquid phase. Luckily, at a given temperature, not every molecule has the same kinetic energy. There is actually a distribution of velocities (Maxwell-Boltzman distribution). The molecules having a high velocity manage to escape the intermolecular forces of the liquid phase and escape into the vapor phase.
The higher energy molecules escaping the liquid phase decreases the average molecular velocity and causes the liquid temperature to decrease. This is why you feel cold after you get out of the shower. Your body heat is transferred to the water molecules which then evaporate
The closer a liquid is to its boiling point, the greater the number of molecules there are that have enough kinetic energy to overcome the intermolecular forces and escape into the vapor phase, thus the higher the rate of evaporation.
What else can I help you with?
What hydrogen is a liquid below what temperature?
Hydrogen is a liquid btween -252,879 oC and 259,16 oC.
What does it mean if a liquid turns into a solid?
The temperature affecting the liquid must have been below freezing for the liquid to turn into a solid.
What might happen to a liquid with a freezing point of 32 degrees if its temperature dropped below 30 degrees?
If the liquid has a freezing point of 32 degrees, it would begin to freeze when its temperature drops below 32 degrees. Therefore, if its temperature dropped below 30 degrees, the liquid would continue to freeze and solidify further.
A gas becomes a liquid when?
When its temperature falls below the boiling point.
When does gas change to liqud?
I believe gas would change to liquid when it's starting to get cold.
How can you change liquid water into a solid or a gas?
To change liquid water into a solid, you need to lower the temperature below 0 degrees Celsius to freeze it. To change liquid water into a gas, you need to raise the temperature above 100 degrees Celsius to evaporate it.
What must be done to oxygen to change it to a liquid?
To change oxygen gas into a liquid, it must be cooled to a temperature below its critical temperature of -118.57 degrees Celsius. This can be achieved by compressing the gas while simultaneously cooling it.
To change from a gas into a liquid?
Compress the gas until it liquefies if it is below its critical temperature or cool the gas to below it's liquefaction point
What is one way to change water from a liquid to a solid?
One way to change water from a liquid to a solid is by lowering its temperature below 0 degrees Celsius. This process is known as freezing, where water molecules slow down and come closer together to form a solid structure, ice.
Does the water changes its state from ice to liquid again under more lower temperature?
No. Water remains a solid from 0 oC and below ... as long as the pressure doesn't change. At high pressures, water can be liquid at temperatures below 273 K (but not much below ... I think the lowest temperature you can have liquid water at is somewhere around 250 K).
Does water vapor change to liquid water?
when water vapor turns to liquid water, it needs to condensate, when its temperature goes below 100 degrees, which is water's boiling point, for it to turn into liquid.
Cooling the air to a temperature below the dew point causes the water vapor to begin to change back into a liquid is what process?
Condensation
To change a gas to a liquid?
To change a gas to a liquid, you need to lower the temperature of the gas below its boiling point while keeping the pressure constant. This process is known as condensation and it causes the gas particles to slow down and come together to form a liquid.
The temperature at which a solid becomes a liquid is called the what?
Simply, the melting point. Think of an ice cube. The melting point is the temperature at which the ice cube MELTS into a liquid.
Will heating a solid to 200 degrees Celsius cause it to change to a liquid?
It depends on the melting point of the solid. If the melting point is below 200 degrees Celsius, then heating the solid to that temperature will cause it to change to a liquid. If the melting point is above 200 degrees Celsius, the solid will not melt at that temperature.
What hydrogen is a liquid below what temperature?
Hydrogen is a liquid btween -252,879 oC and 259,16 oC.
What is a change in state from liquid to solid called?
It is usually called freezing, but can also be called solidification. It occurs when the temperature goes below the freezing temperature of a substance and that substance solidifies, or becomes hard.
