The latent heat of vaporization is the thermal energy required for a liquid to vaporize to a gas or the amount that is released when a gas condenses to a liquid. What is meant by latent heat of vaporization? Here is the Latent Heat table which shows the latent heat of vaporization and change of phase temperatures for some of the common fluids and gases. As mentioned above, water can hold an immense amount of latent heat. In the field of thermodynamics, the study of heat transfer and thermal effects is common. %), what is the partial pressure of oxygen? Cloudflare Ray ID: 5f89306caa6d7e13 This discussion on What is latent heat of vaporization ? If the answer is not available please wait for a while and a community member will probably answer this If the new arrangement has a higher amount of thermal energy, then the substance absorbs thermal energy from its environment in order to make the phase change. Not logged in The Questions and • Question bank for Class 9. The heat of vaporization of water is about 2,260 kJ/kg, which is equal to 40.8 kJ/mol. If you are at an office or shared network, you can ask the network administrator to run a scan across the network looking for misconfigured or infected devices. Latent heat of vaporization is a physical property of a substance. Interestingly, the latent heat of vaporization is the amount of energy required to convert the liquid into vapor and vice versa. 9. Part of Springer Nature. latent heat graph. You may need to download version 2.0 now from the Chrome Web Store. Latent heat It is expressed as kg/mol or kJ/kg. The heat of vaporization of water is the most elevated known. If you are on a personal connection, like at home, you can run an anti-virus scan on your device to make sure it is not infected with malware. is done on EduRev Study Group by Class 9 Students. When a material in liquid state is given energy, it changes its phase from liquid to vapor; the energy absorbed in this process is called heat of vaporization. This service is more advanced with JavaScript available. It is defined as the heat required to change one mole of liquid at its boiling point under standard atmospheric pressure. over here on EduRev! It is because of this latent heat that steam is more dangerous than boiling water. Is water vapour an ideal gas? Answers of What is latent heat of vaporization ? It is expressed as kg/mol or kJ/kg. Latent heat of vapourisation is a physical property of a substance. The vaporization is the opposite process of condensation. Performance & security by Cloudflare, Please complete the security check to access. It is defined as the heat required to change one mole of liquid at its boiling point under standard atmospheric pressure. 8. soon. 7. Latent heat is the heat absorbed or released as the result of a phase change. © 2020 Springer Nature Switzerland AG. Specific heat, or specific heat capacity, is a property related to internal energy that is very important in thermodynamics.The intensive properties c v and c p are defined for pure, simple compressible substances as partial derivatives of the internal energy u(T, v) and enthalpy h(T, p), respectively: © Springer Science+Business Media B.V. 2011, Vijay P. Singh, Pratap Singh, Umesh K. Haritashya, https://doi.org/10.1007/978-90-481-2642-2, Reference Module Physical and Materials Science, Last Glacial Maximum Glaciation (LGM/LGP) in High Asia (Tibet and Surrounding Mountains). In other words, these values are the units of heat per mass that are required to achieve the phase change. When you will heat water it will boil at 100 c but when it is steam its tempt. When a substance changes phase, the arrangement of its molecules changes, but its temperature does not change. Also known as enthalpy of vaporization, the heat of vaporization (∆H vap) is defined by the amount of enthalpy (heat energy) that is required to transform a liquid substance into a gas or vapor.It is measured in Joules … Apart from being the largest Class 9 community, EduRev has the largest solved Why? Completing the CAPTCHA proves you are a human and gives you temporary access to the web property. Your IP: 70.32.23.38 Another way to prevent getting this page in the future is to use Privacy Pass. Specific Heat. community of Class 9. Latent heat of vaporization is the heat energy required to change 1kg of a liquid to gas at atmospheric pressure at its boiling point. are solved by group of students and teacher of Class 9, which is also the largest student The heat of condensation is defined as the heat released when one mole of the... Over 10 million scientific documents at your fingertips.