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The molecules with a higher kinetic energy overcome the intermolecular forces of attraction and break away from the surface of the liquid and escape into the atmosphere as vapor. The molecules that remain will therefore have a lower kinetic energy and will, logically, have a lower temperature.
Wiki User
∙ 15y ago
Wiki User
∙ 10y agoSimple answer: evaporation removes heat (and Kinetic Energy) from a liquid. The boiling point (temperature at which additional heat becomes latent) of a liquid depends on pressure. Example: water boils (vaporizes) at 100°C at atmospheric pressure (101.3 kPa, 14.7psi, or 1 bar), but at much lower temperature when pressure is lower, and much higher temperature at higher pressure. In the case of water evaporating from an open container at room temperature and normal atmospheric pressure, the evaporation only occurs if the partial pressure of atmospheric water vapor (relative humidity) is below the vapor pressure of the liquid water. If humidity is low enough; each gram (milliliter, or cm³) of evaporating water absorbs 540 calories from the liquid it leaves. The process is exploited as "Evaporative Coolong".
Wiki User
∙ 11y agoThe kinetic energy increases because as liquids becomes gases and evaporate, the molecules move faster. Since kinetic energy is the energy of motion, that means there is more energy as the molecules move faster.
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Why evaporation is a cooling process?
according to kinetic theory,the temperature is a measure of average kinetic energy of the molecules of a liquid.during evaporation,the escape of high energy molecules from the surface of a liquid,lowers the average kinetic energy of the remaining molecules and therefore,the temperature of the liquids falls down.thus evaporation is a cooling process.
What is the measurement of the average kinetic energy of the molecules of a substance?
temperature is the average kinetic energy of a particle
The tempertaure scale that is based on the actual kinetic energy of the molecules is the?
The tempertaure scale that is based on the actual kinetic energy of the molecules is
Which molecules has the most potential energy?
Kinetic energy is energy produced by motion/activity. Molecules become more active as they heat up. Therefore, molecules in a gaseous state would have the greatest kinetic energy.
How does cold affect kinetic energy?
The cold slows down the molecules thus decreasing kinetic energy
How does evaporation?
Evaporation is a spontaneous phenomenon. The molecules in the liquid possess kinetic energy. All the molecules donot possess the same kinetic energy. The molecules with higher kinetic energy are on the surface of liquids. They can readily overcome the intermolecular attractions and escape into the atmosphere. This phenomenon is known as evaporation. As the molecules with higher kinetic energy keep on escaping the whole kinetic energy of the liquid is lowered. Since energy is directly proportional to temperature. Thus evaporation causes cooling effect.
Why evaporation is a cooling process?
according to kinetic theory,the temperature is a measure of average kinetic energy of the molecules of a liquid.during evaporation,the escape of high energy molecules from the surface of a liquid,lowers the average kinetic energy of the remaining molecules and therefore,the temperature of the liquids falls down.thus evaporation is a cooling process.
What happens to a sample of matter when its particles lose kinetic energy?
A loss of kinetic energy in the atoms or molecules of a sample of matter will result in the cooling of the sample. That sample will get colder as remove thermal energy from it. The atoms/molecules of a substance have kinetic energy associated with them. This kinetic energy is the result of atomic and/or molecular motion. As a sample of matter cools, the atoms and/or molecules will lose mobility. Loss of mobility and vibrational energy, which are forms of kinetic energy, will become apparent when thermal energy is removed from the sample.
Do molecules have the lowest average kinetic energy in a plasma?
No. Molecules have the lowest average kinetic energy in a solid. Plasma is the highest average kinetic energy.
What is the measurement of the average kinetic energy of the molecules of a substance?
temperature is the average kinetic energy of a particle
How do molecules gain kinetic energy?
Heating increase the kinetic energy.
How does evaporation occur?
Evaporation is a spontaneous phenomenon. The molecules in the liquid possess kinetic energy. All the molecules donot possess the same kinetic energy. The molecules with higher kinetic energy are on the surface of liquids. They can readily overcome the intermolecular attractions and escape into the atmosphere. This phenomenon is known as evaporation. As the molecules with higher kinetic energy keep on escaping the whole kinetic energy of the liquid is lowered. Since energy is directly proportional to temperature. Thus evaporation causes cooling effect.
What cools during evaporation?
Evaporation is a cooling process for a surface because energy is removed from the water as molecules escape the surface. This causes the surface temperature to decrease.When evaporation is taking place we say there is a positive latent heat flux.
What is the relationship between kinetic energy of molecules and their physical state?
The relationship between kinetic energy of molecules and their physical state is simple. The higher the kinetic energy the faster the molecules move. The fastest moving molecules are gaseous and the slowest moving molecules are solids.
The total kinetic and potential energy of the molecules of an object is know as?
The total kinetic and potential energy of the molecules of an object is thermal energy.
What is the average kinetic energy of all the molecules in an object is?
The average kinetic energy of all the molecules in an object is the temperature.
What is the measure of kinetic energy of the Molecules?
temperature is the measure of the average kinetic energy of a substances molecules, though energy is in joules and temperature is in Kelvin.
