Why is latent heat of vaporization important?

Why is latent heat of vaporization important?

The heat of vaporization of water is the highest known. Latent heat is the additional heat required to change the state of a substance from solid to liquid at its melting point, or from liquid to gas at its boiling point, after the temperature of the substance has reached either of these points.

What is use of latent heat?

Latent heat is energy released or absorbed, by a body or a thermodynamic system, during a constant-temperature process. For example, when water evaporates, energy is required for the water molecules to overcome the forces of attraction between them, the transition from water to vapor requires an input of energy.

What are the applications of heat capacity?

Uses of specific heat in daily life Substances having a small specific heat capacity, are very useful as material in cooking instruments such as frying pans, pots, kettles and so on, because, when small amount of heat is applied it will heat quickly. Water used in fire fighting.

What is latent heat vaporization?

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. The heat of vaporization of water is about 2,260 kJ/kg, which is equal to 40.8 kJ/mol.

What is latent heat of vaporization with 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 are the applications of specific heat in our daily life?

Uses of specific heat in our daily life

• Utensils used for making tea or coffee, or cooking vegetables or rice are made of materials of low specific heat.
• Materials of high specific heat can be used as insulators.
• The handles of utensils at home are made of materials which have very high specific heat.

What are the applications of specific heat capacity of water?

Water is used as coolant car radiators for its high specific heat capacity, due to which it can absorb a large amount of heat energy from the engine of the car, without its temperature rising too high.

What does the latent heat of vaporization represent?

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. The latent heat of vaporization is also referred to as the enthalpy of vaporization.

What is specific latent heat of vaporization?

The specific latent heat of a substance is the amount of energy needed to change the state of 1 kg of the substance without changing its temperature. Each substance has two specific latent heats: latent heat of vaporisation (the amount of energy needed to evaporate or condense the substance at its boiling point)

What is Latent of vaporization?

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. The heat of vaporization of water is about 2,260 kJ/kg, which is equal to 40.8 kJ/mol.

What is the application of specific latent heat of vaporisation?

Application of Specific Latent Heat. Steaming Food. 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.

What is latent heat?

Latent heat is defined as the heat or energy that is absorbed or released during a phase change of a substance. It could either be from a gas to a liquid or liquid to solid and vice versa. Latent heat is related to a heat property called enthalpy.

What is latlatent heat and why is it important?

Latent heat is defined as the heat or energy that is absorbed or released during a phase change of a substance. It could either be from a gas to a liquid or liquid to solid and vice versa.

Why does water have high latent heat of combination?

Water has a high latent heat of combination, so transforming water into ice requires expulsion of more energy than solidifying fluid oxygen into solid oxygen, per unit gram. Specific latent heat is characterized as the measure of heat energy (heat, Q) that is consumed or discharged when a body experiences a steady temperature process.