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Why is latent heat of vaporization of a material greater than that of latent heat of fusion?
Heat is required both to melt and to vaporize a pure substance. During the phase change the potential energyof the substance is increasing (that's why the temperature doesn't change during a phase change). In going from solid to liquid, the bonds between the molecules or atoms of the substance are being loosened (from a crystalline structure with atoms or molecules in specific positions to a liquid in which the particles slide by each other). For liquid to gas changes, the bonds are completely broken. Breaking the bonds requires more energy per gram than loosening them. - Chem teacher Yahoo Answers
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What requires more energy the latent heat vaporisation of water or the latent fusion of ice?
The latent heat of vaporisation of water requires more energy. This is because on melting, the intermolecular bonds in water are only weakened whereas on boiling, the bonds are completely broken, which requires a larger amount of energy.
Energy needed to change a material from solid to liquid 3 WORDS?
Heat of Fusion
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 is the amount of heat needed to change 1 kg of a specific material from liquid to vapor at a constant temperature?
The amount of heat needed to change 1 kg of a material from liquid to vapor at a constant temperature is called the latent heat of vaporization. This value varies depending on the material and is typically provided in joules/kg.
What does the heat latent heat of vaporization measure?
The energy required to boil a substance
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 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 requires more energy the latent heat vaporisation of water or the latent fusion of ice?
The latent heat of vaporisation of water requires more energy. This is because on melting, the intermolecular bonds in water are only weakened whereas on boiling, the bonds are completely broken, which requires a larger amount of energy.
What information does the latent 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.
Energy needed to change a material from solid to liquid 3 WORDS?
Heat of Fusion
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 is the latent heat of vaporization of water in joules per kilogram?
The latent heat of vaporization of water is 2260 joules per kilogram.
Is energy released or absorbed when water changes state from a solid to a liquid to a gas?
Energy is absorbed when water changes state from a solid to a liquid to a gas. This energy is used to break the bonds between water molecules during melting and vaporization. It is known as the latent heat of fusion and latent heat of vaporization, respectively.
What is the difference between heat of fusion and heat of vaporization?
Latent heat is the amount of thermal energy required to change the phase of a substance. Latent heat of fusion is the amount of energy needed to change it from a solid to liquid or a liquid to solid, and the latent heat of vaporization is the thermal energy needed to change from a liquid to gas or a gas to liquid. For example, in the equation Q = mL, Lfusion (latent heat of fusion) for water is 75.5 cal/gram. Lvaporization (latent heat of vaporization) for water is 539 cal/gram. Substances have different latent heats.
Two HVACR technicians are discussing the change of states in matter. Technician A says that the latent heat of fusion is the amount of heat that must be added to matter to convert it from a liquid to?
Technician A is incorrect. The latent heat of fusion is the amount of heat required to convert a solid into a liquid at its melting point. To convert a liquid to a gas, you would need to add the latent heat of vaporization.
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.
What are the factors that affect specific latent heat of fusion of a substance?
The amount of energy needed to change the "state of matter" is termed as "latent heat". This is not same for vapourisation (liquid to vapour) or for fusion (solid to liquid). For example, latent of fusion is 79.7 cal whereas latent heat for vapourisation is 541 calories. The latent depends on how closely the atoms and molecules in the matter are closely packed.
