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The latent heat of vaporisation of a substance is always
Vaporization is the process in which a liquid changes into a gas. It occurs when the liquid’s temperature increases, providing sufficient energy to overcome intermolecular forces. There are two types: evaporation (surface process) and boiling (occurs throughout the liquid). Vaporization requires energy, known as latent heat of vaporization.
Chapter 10 of Class 11 Physics deals with thermal properties of matter. It covers topics like temperature and heat specific heat capacity heat transfer conduction convection and radiation thermal expansion of solids liquids and gases and the laws of thermodynamics. The chapter also discusses the concept of latent heat and the calorimetry principle.
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Latent heat of vaporization is about the change in phase from liquid to gas; it involves breaking almost all the intermolecular bonds. Such a process needs much more energy.
– The latent heat of fusion involves the change from the solid state to liquid, where just some intermolecular bonds are released; therefore, less energy is required.
– Usually, the latent heat of vaporization is much higher than the latent heat of fusion for the same substance.
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