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Evaporation takes place at all temperatures but boiling at one particular temperature
When saturated vapour pressure becomes equal to the atmospheric pressure boiling takes place but evaporation is not so
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Why does siphon work?
It doesn't create a vacuum. I can't give a great explanation, but its because there are pressure differences between one side and anther. Where the liquid is coming from has to be higher up than where the liquid ends up, although there can be ups and downs in between the two points.
Does evaporation take on or give off energy?
Moisture needs to take in energy to evaporate. That's why your skin feels cooled when it happens to sweat on your skin.
Why elements give line spectrum?
Because the spectra of elements is determined by the energy of transitions of electrons between two allowed quantum states. Since these energy differences can have only certain specified values, the spectrum consists of lines: The spectrum frequency values intermediate between the lines do not correspond to transitions between any two allowed quantum states and therefore do not appear in the spectrum
What is the difference between latent heat and heat?
Usually as we give heat to a system then temperature of the system would rise. But at the boiling point though we give enormous amount of heat the temperature would remain the same and so the heat given is said to be latent and it is used to change water from liquid state to gaseous state. Hence the name latent heat
When you sit at camp fire objects beyond the fire seen swaying give the reason for it?
Differences in density in the air or gases (due to the heat) produce refraction. These differences in density change from one moment to another.
What is the difference between evaparation and boiling?
i think that u were asking about the difference between evaporation and boiling. Some key points are 1) Evaporation takes internal energy while for boiling we have to provide external energy or we have to reduce the pressure. 2) As Evaporation takes internal energy therefore evaporation results in cooling while this is not observed in boiling. 3) Evaporation occurs below saturated temperature while Boiling occurs at and above saturated temperature. 4) Evaporation occurs at liquid-vapor interface while Boiling occurs at solid liquid interface. 5) Vapor bubbles are formed in Boiling while in Evaporation there are no bubble formation and no bubble motion. 6) There are different regimes of boiling (like nucleate boiling, transition boiling, film boiling etc.) while these regimes are not present in Evaporation. 7) Rate of Evaporation is much slower than the Boiling. 8) Example of Evaporation are Water in a lake at 20°C, evaporates to air at 20°C and 60 percent relative humidity since the saturation pressure of water at 20°C is 2.34 kPa, and the vapor pressure of air at 20°C and 60 percent relative humidity is 1.4 kPa. Other examples of evaporation are the drying of clothes, fruits, and vegetables; the evaporation of sweat to cool the human body; and the rejection of waste heat in wet cooling towers. i am hoping that the above comparison will give you the clear picture about the evaporation and boiling.
What is the difference between eaporation and boiling?
i think that u were asking about the difference between evaporation and boiling. Some key points are 1) Evaporation takes internal energy while for boiling we have to provide external energy or we have to reduce the pressure. 2) As Evaporation takes internal energy therefore evaporation results in cooling while this is not observed in boiling. 3) Evaporation occurs below saturated temperature while Boiling occurs at and above saturated temperature. 4) Evaporation occurs at liquid-vapor interface while Boiling occurs at solid liquid interface. 5) Vapor bubbles are formed in Boiling while in Evaporation there are no bubble formation and no bubble motion. 6) There are different regimes of boiling (like nucleate boiling, transition boiling, film boiling etc.) while these regimes are not present in Evaporation. 7) Rate of Evaporation is much slower than the Boiling. 8) Example of Evaporation are Water in a lake at 20°C, evaporates to air at 20°C and 60 percent relative humidity since the saturation pressure of water at 20°C is 2.34 kPa, and the vapor pressure of air at 20°C and 60 percent relative humidity is 1.4 kPa. Other examples of evaporation are the drying of clothes, fruits, and vegetables; the evaporation of sweat to cool the human body; and the rejection of waste heat in wet cooling towers. i am hoping that the above comparison will give you the clear picture about the evaporation and boiling.
What are the differences between boiling and evaporation?
Boiling- i) It is a bulk phenomena.ii) The substance changes it's state only at it's boiling point.iii) It doesn't give a cooling effect.Evaporation- i) It is a surface phenomena.ii) The substance does not change only at it's boiling point.iii) It gives a cooling effect.EVAPORATIONevaporation takes place silentlyit takes place at all temp.its a natural processit takes place only on surfacerate of evaporation depends on area of free surfaceBOILINGits associated with characteristic soundits takes place at all temp.to be heated for boilingat constant temp. boiling takes placeboiling takes place at all regions of liquidit does not depend on free surface
What is the difference between evaporation and bolling?
Some key points are 1) Evaporation takes internal energy while for boiling we have to provide external energy or we have to reduce the pressure. 2) As Evaporation takes internal energy therefore evaporation results in cooling while this is not observed in boiling. 3) Evaporation occurs below saturated temperature while Boiling occurs at and above saturated temperature. 4) Evaporation occurs at liquid-vapor interface while Boiling occurs at solid liquid interface. 5) Vapor bubbles are formed in Boiling while in Evaporation there are no bubble formation and no bubble motion. 6) There are different regimes of boiling (like nucleate boiling, transition boiling, film boiling etc.) while these regimes are not present in Evaporation. 7) Rate of Evaporation is much slower than the Boiling. 8) Example of Evaporation are Water in a lake at 20°C, evaporates to air at 20°C and 60 percent relative humidity since the saturation pressure of water at 20°C is 2.34 kPa, and the vapor pressure of air at 20°C and 60 percent relative humidity is 1.4 kPa. Other examples of evaporation are the drying of clothes, fruits, and vegetables; the evaporation of sweat to cool the human body; and the rejection of waste heat in wet cooling towers. i am hoping that the above comparison will give you the clear picture about the evaporation and boiling.
Differentiate between evaporation and boiling?
Some key points are 1) Evaporation takes internal energy while for boiling we have to provide external energy or we have to reduce the pressure. 2) As Evaporation takes internal energy therefore evaporation results in cooling while this is not observed in boiling. 3) Evaporation can occur below saturated temperature while Boiling occurs only at and above saturated temperature. 4) Evaporation occurs at only at the liquid/vapor interface while Boiling may occur at a solid/liquid interface. 5) Vapor bubbles are formed in Boiling while in Evaporation there are no bubble formation and no bubble motion. 6) There are different regimes of boiling (like nucleate boiling, transition boiling, film boiling etc.) while these regimes are not present in Evaporation. 7) Rate at which a substance changes from liquid to vapor through Evaporation is much slower than when Boiling. 8) Example of Evaporation are Water in a lake at 20°C, evaporates to air at 20°C and 60 percent relative humidity since the saturation pressure of water at 20°C is 2.34 kPa, and the vapor pressure of air at 20°C and 60 percent relative humidity is 1.4 kPa. Other examples of evaporation are the drying of clothes, fruits, and vegetables; the evaporation of sweat to cool the human body; and the rejection of waste heat in wet cooling towers. i am hoping that the above comparison will give you the clear picture about the evaporation and boiling.
Give three differences between evaporation and boiling?
They are similar in that both result in some of the liquid being lost to the surrounding ambient volume as a gas. The specific gas depends on the liquid. It's called steam when the liquid is boiling water. It's called humidity when it's evaporated water. They are different in the speed at which the liquid is converted into gas and in the nature of the gas emitted into the air. For evaporation, the liquid quietly off gases fairly slowly so the amount of gas (molecule sized particles) above the liquid is typically not visible to the naked eye. But for boiling, the liquid bubbles and off gases fairly rapidly so the amount of gas above the boiling liquid is seen as steam (if the liquid is water). We see the steam and not the humidity because the size of steam particles is larger than the molecular size of humidity.
What is the difference of evaporation and boiling?
Some key points are 1) Evaporation takes internal energy while for boiling we have to provide external energy or we have to reduce the pressure. 2) As Evaporation takes internal energy therefore evaporation results in cooling while this is not observed in boiling. 3) Evaporation occurs below saturated temperature while Boiling occurs at and above saturated temperature. 4) Evaporation occurs at liquid-vapor interface while Boiling occurs at solid liquid interface. 5) Vapor bubbles are formed in Boiling while in Evaporation there are no bubble formation and no bubble motion. 6) There are different regimes of boiling (like nucleate boiling, transition boiling, film boiling etc.) while these regimes are not present in Evaporation. 7) Rate of Evaporation is much slower than the Boiling. 8) Example of Evaporation are Water in a lake at 20°C, evaporates to air at 20°C and 60 percent relative humidity since the saturation pressure of water at 20°C is 2.34 kPa, and the vapor pressure of air at 20°C and 60 percent relative humidity is 1.4 kPa. Other examples of evaporation are the drying of clothes, fruits, and vegetables; the evaporation of sweat to cool the human body; and the rejection of waste heat in wet cooling towers. i am hoping that the above comparison will give you the clear picture about the evaporation and boiling.
What is the difference between evaporation and distillation?
Evaporation can happens at any temperature below boiling point under atmosphere pressure. Every liquid exhibits vapor pressure on it's surface. In case of evaporation, vapor may be displaced from the surface of the liquid due to diffusion.In case of distillation, liquid boils to give vapors. (boiling happens when the vapor pressure equals to the pressure of the system)
Difference between evaporation and boiling?
The difference in evaporation and boiling is simple. Just imagine a beaker and being placed on the hot plate. The liquid it beginning to evaporate and the their is a gradient in the water because not all of the water is reaching 100 degrees Celsius at once. Some of it is beginning to evaporate (change in the state from a liquid to a gas) the other is beginning to boil! Remember boiling is a characteristic property and once it is reached the temperature doesn't continue to increase. Hope this helped!Vaporization if the phase change from a liquid to a gas. Evaporation and boiling are both mechanisms for vaporization to occur. Evaporation occurs at the surface of the liquid. It is the primary method by which water moves from bodies of water into the atmosphere. It is a much slower process than boiling. Boiling occurs when a liquid is heated to the boiling point. During boiling, water evaporates throughout the entire liquid very fast, rather than just at the surface.Evaporation happens only at the surface of a liquid and occurs at any temperature (so long as the substance is a liquid at that temperature). However, as most people are aware, liquids evaporates faster at a higher temperature. Boiling, on the other hand, happens throughout the bulk of a liquid, usually starting from some site on the inside of the container and rising in a bubble to the surface. It only happens when the temperature is above the boiling point of that substance.
Give 2 examples of evaporation?
Water in a boiling pot changing to a gas IF you leave a glass of water out on a hot day, it will be gone in a couple of hours
What are different between evaporation and boiling?
Boiling- i) It is a bulk phenomena.ii) The substance changes it's state only at it's boiling point.iii) It doesn't give a cooling effect.Evaporation- i) It is a surface phenomena.ii) The substance does not change only at it's boiling point.iii) It gives a cooling effect.EVAPORATIONevaporation takes place silentlyit takes place at all temp.its a natural processit takes place only on surfacerate of evaporation depends on area of free surfaceBOILINGits associated with characteristic soundits takes place at all temp.to be heated for boilingat constant temp. boiling takes placeboiling takes place at all regions of liquidit does not depend on free surface
What is the relationship between surface area and rate of evaporation?
Evaporation is a process that takes place at the surface of a liquid, therefore the rate of evaporation is directly related to the surface area. Twice as much surface area will give you twice as much evaporation.
