Quick Answer: What Are The Two Types Of Latent Heat?

How do you get latent heat?

Latent heat calculation The specific latent heat is different for solid to liquid transition and liquid to gas transition.

For example, if we want to turn 20 g of ice into water we need Q = 20 g * 334 kJ/kg = 6680 J of energy.

To turn the same amount of water into vapor we need Q = 45294 J ..

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.

What is latent heat in simple words?

latent heat. [ lāt′nt ] The quantity of heat absorbed or released by a substance undergoing a change of state, such as ice changing to liquid water or liquid water changing to ice, at constant temperature and pressure.

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 is latent heat of fusion?

Definition of latent heat of fusion. The amount of heat required to change 1 g of a substance at the temperature of its melting point from the solid to the liquid state without changing temperature.

What is the latent heat of steam?

As 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 do you understand by the term latent heat What are the two types of latent heat?

The word ‘latent’ means hidden. The characteristic amount of energy absorbed or released by a substance during a change in its physical state that occurs without changing its temperature is known as latent heat. The two types of latent heat are Latent heat of fusion and latent heat of vapourization.

What is latent heat?

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 example of latent heat?

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 sublimation class 9th?

Class 9 Chemistry Matter In Our Surroundings. Sublimation. Sublimation. The phenomenon of change of solid directly to gas or conversion of gas directly to liquid without changing into liquid state is called sublimation. For instance, camphor also called capoor when kept for a long time vanishes.

What is the latent heat of water?

Latent heat of water is the energy required to change its state, also called its phase, without changing its temperature. The latent heat of fusion is the energy required to change a defined quantity of ice at 0 deg C from a solid to a liquid at the same temperature.

What is the value of latent heat?

It depends upon saturation temperature and pressure. At atmospheric pressure, the saturation temperature is 100 C. In order to convert 1 kg of water at saturation temperature to vapor, we need 2257 kJ of heat. Thus latent heat of vaporization of water at atmospheric pressure is 2257 kJ/kg.

What is Latent Heat Class 9?

Latent heat: The heat energy which has to be supplied to change the state of a substance is called its latent heat. Latent heat does not raise (or increase) the temperature. … The latent heat which we supply is used up in overcoming the forces of attraction between the particles of substance during the change of state.

What is difference between sensible heat and latent heat?

Latent and sensible heat are types of energy released or absorbed in the atmosphere. Latent heat is related to changes in phase between liquids, gases, and solids. Sensible heat is related to changes in temperature of a gas or object with no change in phase.

What are the application of latent heat?

The specific latent heat of vaporisation for water is large. Plates filled with food are able to absorb heat from the hot steam. The condensation of steam at the base of the plate releases a large quantity of heat and thus enables food such as cakes,fish, eggs and others to be steamed.

Why is latent heat of fusion important?

The latent heat of fusion is the heat required for an object to go from the solid state to the liquid state, or vice versa. Since its value is generally much higher than specific heat, it allows you to keep a beverage cold for much longer by adding ice than simply having a cold liquid to begin with.

What is the formula for calculating latent heat?

The specific latent heat is different for solid to liquid transition and liquid to gas transition. For example, if we want to turn 20 g of ice into water we need Q = 20 g * 334 kJ/kg = 6680 J of energy. To turn the same amount of water into vapor we need Q = 45294 J .

Can you measure latent heat?

The temperature of the material during the phase change does not change and hence it is in thermal equilibrium with anything it is in contact with, like a thermometer. Thus a thermometer cannot measure any temperature change when heat is supplied during phase change, otherwise known as latent heat.

What is Latent Heat and types?

Latent heat is energy released or absorbed, by a body or a thermodynamic system, during a constant-temperature process. Two common forms of latent heat are latent heat of fusion (melting) and latent heat of vaporization (boiling).