What is the specific latent heat of vaporization?
Specific Latent Heat of Vaporisation is the energy required to change the state of 1kg of a substance from liquid to gas.
What is the SI unit of specific latent heat of vaporization of steam?
The heat energy that is associated with change in state from liquid to vapor is called latent heat of vaporization. The SI unit of latent heat is Joule per Kilogram.
What is latent heat of vaporization class 9th?
Latent heat of vaporization is the heat consumed or discharged when matter disintegrates, changing stage from fluid to gas stage at a consistent temperature.
What is SI unit of vaporization?
The SI unit of latent heat of vaporization is joule per kilogram [J/kg]
What is latent heat of vaporization write its units?
Latent heat of vaporization: It is the quantity of heat required to convert 1 g of liquid into vapours at constant temperature. Unit of latent heat is J/kg in SI system and cal/g in cgs system.
What is the latent heat of vaporization class 9th?
What is latent heat of vaporization class 9th Ncert?
Latent heat of vaporisation. Latent heat of vaporisation. The term latent heat of vaporisation can be defined as the amount of heat needed for the conversion of 1kg of liquid at its boiling point to gas at same temperature. It differs among different liquids. Fig.
What is vaporization in chemistry class 9?
Vaporization is a process in which, the liquid is converted into vapour at its boiling point.
How is latent heat of vaporization measured?
Latent heat of vaporization is a physical property of a substance. It is defined as the heat required to change one mole of liquid at its boiling point under standard atmospheric pressure. It is expressed as kg/mol or kJ/kg.
What is meant by saying that the latent heat of vaporization of water is 22.5 10/5 J kg?
The latent heat of vaporization of water is 22.5 × 105 joules per kilogram (or 22.5 × 105 j/kg). Hence it means that 22.5 × 10 5 J of heat is required to change 1 Kg of water (at its boiling point, 100°C) into steam at the same temperature of 100°C.
What is vaporisation Class 9?
→ Vaporization is a process which occurs when a element or a chemical is converted from a liquid or solid to a gas. It can be define as the amount of heat needed for the conversation of 1 kg liquid at its boiling point at same temperature.
Which is the specific latent heat of vaporisation?
BSL Physics Glossary – specific latent heat of vaporisation – definition Look at the formula: Eh= m x l Ehmeans energy, equals mass times l. l is the specific latent heat, either of fusion or vaporisation. As you heat a liquid such as water, and put a lot of energy into it some of the molecules will change from liquid to gas.
What does the enthalpy of vaporization stand for?
(March 2016) ( Learn how and when to remove this template message) The enthalpy of vaporization (symbol ∆Hvap ), also known as the (latent) heat of vaporization or heat of evaporation, is the amount of energy ( enthalpy) that must be added to a liquid substance to transform a quantity of that substance into a gas.
What happens when latent heat is added to a gas?
This energy breaks down the intermolecular attractive forces, and also must provide the energy necessary to expand the gas (the pΔV work ). When latent heat is added, no temperature change occurs. The enthalpy of vaporization is a function of the pressure at which that transformation takes place.
How is the heat of vaporization related to phase change?
In general, when a material changes phase from solid to liquid, or from liquid to gas a certain amount of energy is involved in this change of phase. In case of liquid to gas phase change, this amount of energy is known as the enthalpy of vaporization, (symbol ∆H vap; unit: J) also known as the (latent) heat of vaporization or heat of evaporation.