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Several thermodynamic concepts are ambiguous

2011-08-12View Original

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Vaporization latent heat, heat of vaporization, vaporization enthalpy, enthalpy of phase change, evaporation latent heat, evaporation enthalpy, steam enthalpy – what are the differences and relationships between them, and what are their precise definitions?
Reply #22011-08-12
Bro, it’s hard to answer questions like this. The differences and connections between 7 things……
Reply #32011-08-13
The latent heat of vaporization and the latent heat of evaporation should be the same, while the enthalpy of evaporation and the enthalpy of vaporization should belong to the enthalpy of phase change
Reply #42011-08-14
Vaporization latent heat: It is the amount of heat absorbed per unit mass of a liquid substance during vaporization, with the temperature remaining constant. Also known as the heat of vaporization, or enthalpy of vaporization! The phase transition enthalpy, I think, is the amount of heat absorbed or released when a substance undergoes a phase transition. Latent heat of vaporization refers to the amount of heat required to transform a substance from the liquid phase to the gas phase at a constant temperature. The enthalpy of vaporization refers to the energy required, under specified conditions, to convert a unit amount of liquid or solid (in this case, during sublimation) into saturated vapor under the same conditions. (On the sea river)

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