0
The latent heat of vaporization is what is commonly referred to as boiling. This is the amount of energy require to change from a state of liquid to vapor.
Latent heat of vaporization is the amount of heat energy required to convert a substance from its liquid state to its gaseous state at its boiling point, without a change in temperature. It reflects the strength of intermolecular forces in a substance - the higher the latent heat of vaporization, the stronger the intermolecular forces holding the substance together.
Latent heat of vapourisation is the amount of energy absorbed by a substance when it changes from a liquid to a gas without any change in temperature. It can be calculated by using the equation Lv=E/m where Lv is the latent heat of vapourisation, E is the energy and m is the mass of the substance. Similarly the latent heat of fusion (Lf) is the amount of energy to change a solid into a liquid.
The latent heat of vaporisation is the energy required to convert liquid to gas. It is expressed in joules per gram and varies from substance to substance. The energy is required to enable the molecules of liquid to overcome the molecular attraction between molecules and break free to become free-moving molecules of gas.
You can see this latent heat happening with boiling water. As it boils the water stays at 100 Degrees C. despite the fact that there is a flame heating it. The energy of that extra heat input is being taken away from the pot by the escaping water vapour and is contained in that vapour.
===========================================When one milliliter (ml, or cc, or gram) of water evaporates, it needs to absorb 'X' amount of energy from its surroundings so as to be able to increase its Kinetic Energy, which then allows the change in state from a liquid to a vapor to occur.
Therefore, the latent heat of vaporization is the amount of Heat Energy that is required to raise one gram of water from the liquid state to the gaseous state.
============================================
The Important thing to note about the latent heat of Vaporisation is that it is given back to the environment when the vapour condenses back to a liquid.
The latent heat of vaporization for water is 539.6 cal/gram.
The only thing can be cosidered is the total amount of heat added to water to vaporize at what atmospheric pressure.it may change the latent heat of vaporization.
2250 kJ/Kg
That really depends of which substance is evaporating. However, for water it is 2264.7 kj/kg. It is the amount of energy required in order to change a liquid at it boiling point into a gas at the same temperature. Notice there is no change in temperature, just a change is state.
Add your answer:
Earn +20 pts
What is the Latent heat of vapourization at low pressure and temperature?
The latent heat of vaporization at low pressure and temperature will be lower than at standard conditions because the energy required to overcome intermolecular forces and change the state of the substance is reduced. This reduction occurs due to the lower kinetic energy of the particles involved, resulting in less energy needed to transition from liquid to gas phase.
What requires more energy the latent heat vaporisation of water or the latent fusion of ice?
The latent heat of vaporization of water requires more energy than the latent heat of fusion of ice. The latent heat of vaporization for water is approximately 2260 kJ/kg, while the latent heat of fusion for ice is approximately 334 kJ/kg.
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 is the heat that is released when water condenses and changes to liquid form?
The heat released when water condenses and changes to liquid form is called the latent heat of condensation. This heat is released because the water vapor loses energy as it transitions to a liquid state, leading to a release of thermal energy.
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.
What is the difference between latent heat of fusion and latent heat of vapourization?
Latent heat of fusion is the energy required to change a substance from solid to liquid at its melting point, while latent heat of vaporization is the energy required to change a substance from liquid to gas at its boiling point. Both represent the energy needed to change the state of a substance without changing its temperature.
Why is the latent heat of vapourization of steam is more than that of boiling water?
Because steam is hotter than boiling water.
What is the Latent heat of vapourization at low pressure and temperature?
The latent heat of vaporization at low pressure and temperature will be lower than at standard conditions because the energy required to overcome intermolecular forces and change the state of the substance is reduced. This reduction occurs due to the lower kinetic energy of the particles involved, resulting in less energy needed to transition from liquid to gas phase.
What is the symbol for latent heat?
The symbol for latent heat is ( L ).
Why heat of vapourization of iodine is high?
because its size is greater london disperssion forces are greater
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 the opposite of latent heat?
The opposite of latent heat is sensible heat. Sensible heat is the heat that causes a change in temperature of a substance without a change in phase.
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.
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.
How do you define latent heat and What is its relationship to potential energy?
Latent heat is the heat required to achieve a change of phase - for example, to melt ice and convert it to water. As to the relationship with potential energy, latent heat IS a type of potential energy.
Why is latent heat of vapourisation higher than latent heat of fusion?
The latent heat of vaporization is higher than the latent heat of fusion because it takes more energy to change a substance from a liquid to a gas (vapor) than from a solid to a liquid. This is because breaking the inter-molecular forces in a liquid requires more energy than overcoming the intermolecular forces in a solid.
