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The latent heat of evaporation represents the amount of energy required to change a substance from liquid to gas at its boiling point without changing its temperature. This energy is used to overcome the intermolecular forces holding the molecules together in the liquid state.
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What does latent evaporation equal?
Latent evaporation is the amount of energy required to convert a liquid into vapor at a constant temperature. It is equal to the latent heat of vaporization of the substance being evaporated.
Can latent heat be zero?
No, latent heat cannot be zero because it represents the heat energy absorbed or released during a phase change of a substance, such as melting, freezing, evaporation, or condensation. This energy is required to break intermolecular bonds or create them, so it cannot be zero.
Define latent heat of fusion and latent heat of vapourisation?
Latent heat of fusion is the amount of heat energy required to change a substance from a solid to a liquid at its melting point. Latent heat of vaporization is the amount of heat energy needed to change a substance from a liquid to a gas at its boiling point.
What is called the release of latent heat along from water molecules on a wet surface?
The release of latent heat from water molecules occurs during the process of evaporation from a wet surface. This latent heat is absorbed by the water molecules to break intermolecular bonds, allowing them to transition from liquid to vapor state.
How does evaporation take away heat?
Evaporation takes away heat because it requires energy to break the bonds between water molecules, causing them to change from liquid to gas. This energy, called the latent heat of vaporization, is absorbed from the surrounding environment, thus cooling it.
What is latent heat evaporation?
Latent heat of evaporation of water to steam is 2270 KJ/Kg
What is the heat stored in the atmosphere as a result of evaporation?
Latent
What is heat called that is stored in the atmosphere as a result of evaporation?
The heat stored in the atmosphere as a result of evaporation is called latent heat. This heat is absorbed during the process of evaporation and is released when water vapor condenses back into liquid water.
What does latent evaporation equal?
Latent evaporation is the amount of energy required to convert a liquid into vapor at a constant temperature. It is equal to the latent heat of vaporization of the substance being evaporated.
How does specific latent heat of water vary with temperature?
Latent heat of water is the heat required to change its state at a particular temperature BECAUSE of the pressure at which the water is at at the point of fusion or evaporation.The latent heat is not affected by temperature (in fact there is no temperature change during absorption of latent heat) it is affected by the pressure acting on a substance. As the pressure increases, the latent heat (of evaporation) decreases, consequently with the change in pressure there is also a different temperature at which the evaporation takes effect, higher pressure, higher temperature at the evaporation point.
The form of energy related to the change of the state of water?
The energy which must be transferred to or from a sample of water in order to change it's state is called the Latent Energy or Latent Heat - for example Latent Heat of Evaporation or Latent Heat of Freezing.
Amount of heat used to change from one state to another?
Known to be the latent heat of evaporation or latent heat of fusion in case of boiling and in case of freezing respectively.
What does the body depend upon when cooling itself in a hot environment?
The latent heat of evaporation of water - the evaporation of sweat.
The amount of energy needed to change a material from a solid to a liquid is the heat of what?
The latent heat of evaporation
Why is latent heat important to the atmosphere?
Latent heat plays a crucial role in the atmosphere by driving processes like evaporation and condensation, which are key components of the water cycle. It helps to transfer heat between the Earth's surface and the atmosphere, influencing weather patterns and atmospheric circulation. The release or absorption of latent heat during phase changes of water (e.g., from vapor to liquid) can also affect the stability and dynamics of the atmosphere.
What is the amount of energy required to change a material from a liquid to a gas?
Latent Heat of Evaporation, or Evaporation Enthalpy. It is given in units of energy over unit of mass, i.e., KJ/Kg.
Can latent heat be zero?
No, latent heat cannot be zero because it represents the heat energy absorbed or released during a phase change of a substance, such as melting, freezing, evaporation, or condensation. This energy is required to break intermolecular bonds or create them, so it cannot be zero.
