Quick Answer: What Is The Value Of Latent Heat?

What is the formula of latent heat?

Latent heat is the heat required to convert a solid into a liquid or vapour phase, or a liquid into a vapour phase….L = 200 k.cal/kg.FORMULAS Related LinksFormula Math ExampleAnalysis Of Variance FormulaBoyle’s Law ExampleChain Rule FormulaVolume FormulaDistance Formula2 more rows.

What is latent heat in simple words?

Latent heat, energy absorbed or released by a substance during a change in its physical state (phase) that occurs without changing its temperature. … The latent heat is normally expressed as the amount of heat (in units of joules or calories) per mole or unit mass of the substance undergoing a change of state.

What is the dimension of latent heat?

If Q is the amount of heat to change the state of m Kg substance keeping temperature constant then Latent heat of that substance ,L= Q/m . So the dimension of latent heat means the dimension of heat( i.e., energy ) ML^2 T^-2 divided by dimension of mass M which is equal to L^2 T^-2 .

What are the two types of latent heat?

Two common forms of latent heat are latent heat of fusion (melting) and latent heat of vaporization (boiling). These names describe the direction of energy flow when changing from one phase to the next: from solid to liquid, and liquid to gas.

What is Latent Heat example?

For example, when a pot of water is kept boiling, the temperature remains at 100 °C (212 °F) until the last drop evaporates, because all the heat being added to the liquid is absorbed as latent heat of vaporization and carried away by the escaping vapour molecules.

What is the value of latent heat of steam?

2257 kJ/kgAs the latent heat of steam at atmospheric pressure is 2257 kJ/kg the amount of flash steam produced will be 299/2257 = 0.133 kg/kg of condensate.

What is L in latent heat?

Specific latent heat (L) is defined as the amount of thermal energy (heat, Q) that is absorbed or released when a body undergoes a constant-temperature process.

Why is latent heat important?

Latent heat is an important source of energy in the development of thunderstorms and hurricanes. Water vapor strongly absorbs infrared radiation, making it an important gas in the Earth’s heat-energy balance. In fact water vapor is the largest contributor to the greenhouse effect on Earth.

What are three types of latent heat?

latent heat of fusion.Latent heat of vaporisation.Latent heat of sublimation.Latent heat of gas hydrate formation.

Can you feel latent heat?

If it condenses on its own, it will give off (sensible) heat and get warmer. Therefore sensible heat can be felt while latent heat is the type of heat that cannot be felt.

What are the different types of latent heat?

Two common forms of latent heat are latent heat of fusion (melting) and latent heat of vaporization (boiling). These names describe the direction of energy flow when changing from one phase to the next: from solid to liquid, and liquid to gas.