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The amount of energy required to turn a mole of a liquid into a gas
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∙ 12y ago
Amount of heat necessary to change the state of substance?
Heat of vaporization or enthalpy of vaporization. It is the additional energy, per unit mass, required after vaporization temperature (boiling point) is reached, to accomplish the change in state, from liquid to gas.
What information does the latent heat of fusion give?
latent heat of fusion tells us about the amount of energy that must be taken off from water at 00C to fuse it into ice at 00C . Actually this in this phase temperature remains constant and this energy is (either latent heat of fusion or latent heat of vaporization is the potential energy which is possessed by the states by their virtue.
Could a heat pump work without the latent heat of vaporization?
There are probably several ways to build a heat pump; for example, a substance might be compressed and expanded. If latent heat is used, this is probably because it is easier and more efficient to build the heat pump that way.
When trees transpire releasing gaseous water into the atmosphere they can absorb heat from their environment and cool it down. What property of water is responsible for this activity?
Latent heat of vaporization.
Why is latent heat called hidden heat?
The latent heat of fusion refers to the heat of fusion in reactions that involve a solid that forms a liquid, or vice versa. The latent heat of vaporization is the latent heat involving a liquid that forms a gas or vice versa.Latent means hidden or unseen. In this context, the 'latent' heat is the heat that is not detectable as a temperature change in the substance. Rather than adding kinetic energy (which is detectable as a temperature change) some heat is required to break the bonds of the solid structure.
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
What does the latent Of heat of vaporization represent?
The amount of energy required to turn a mole of a liquid into a gas
What does the latent heat vaporization represent?
The amount of energy required to turn a mole of a liquid into a gas
What is the electrical method to determine the specific latent heat of vaporisation?
coclude the specific latent heat of vaporization
What is the latent of vaporization?
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.
What does the heat latent heat of vaporization measure?
The energy required to boil a substance
What is the Latent heat of vaporization for ethyl acetate?
87.6kcal/kg
What step changes liquid water to water vapor?
Vaporization is the change of liquid water to water vapor. Vaporization requires addition of the latent heat of vaporization to liquid water. The latent heat of vaporization supplies the liquid water molecules with enough energy to become vapor molecules. The latent heat of vaporization at 1.0 atmosphere pressure is about 1000 Btu per lbm ( 2260 kJ per kg ).
What is the value of latent heat of vaporization of water?
2260 kJ/kg
How your body cooled when you perspire?
Perspiration coats the outside of the skin with moisture (water). The water evaporates. Evaporation requires heat to be absorbed by the water (the latent heat of vaporization). Heat is removed from the body surface to provide the water with the latent heat of vaporization.
Why does the temperature stops rising during melting and boiling point?
Because the latent heat of fusion and latent heat of vaporization are very high
What appliances make use of latent heat of vaporization?
Refrigerator, freezer and air conditioner.
