Write an activity to explain the term latent heat of fusion or vaporization.
Answers
Explanation:
Latent heat of vaporization is a physical property of a substance. ... 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. The heat of vaporization of water is about 2,260 kJ/kg, which is equal to 40.8 kJ/mol.
Answer:
Melting is the process where solid changes into a liquid at a particular temperature.
Melting point
The temperature at which a solid melts to become a liquid at the atmospheric pressure is called its melting point.
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.
Latent heat of fusion
Latent heat of fusion is the amount of heat energy required to change 1 kg of a solid into liquid at atmospheric pressure at its melting point.
Boiling
Boiling is the process where a liquid changes into a vapor at a particular temperature.
Boiling point
Water boils at 1000C. At that temperature, it changes from the liquid state to the gaseous state. The temperature at which a liquid starts boiling at the atmospheric pressure is known as its boiling point
Latent heat of vaporization
Latent heat of vaporization is the amount of heat energy required to change 1 kg of liquid into a gas at atmospheric pressure at the boiling point.
Freezing
The process, where a liquid converts into a solid, is called freezing or solidification.
On cooling a liquid the particles come closer due to the decreased kinetic energy.When the particles come closer the inter particular spaces are reduced and the forces of attractions increased. Finally the particles are arranged themselves in a regular, compact manner.
Evaporation
The process where a liquid changes into vapor at any temperature below its boiling point is evaporation .Evaporation is a surface phenomenon. i.e evaporation takes place at the surface of the liquid.
Finally, hence proved liquid converted into vapour
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