Question

define fusion, latent heat , boiling point , latent heat of vaporisation

Answer 1

heat of fusion : amount of heat required to convert 1kg of solid into liquid at it's melting point without an increase in temperature.

Latent heat : the word latent means hidden so it's hidden heat . At melting point the supply of heat energy is used to overcome a force of attraction between the particles and convert the solid into liquid at a constant temperature. because of this the particles of liquid have more energy than the particles of solid. so when a solid melts it's temperature remains constant though the heat is continuously supplied.

Answer 2

Hi beloved sister @Sudarshana Sinha

Good question..........

Here is your answer...........

1.Fusion: The noun fusion comes from the Latin word fundere, meaning melt, so fusion is the act of melting things together. In science, fusion is the process of merging Two atoms together to create energy, which is also known as Nuclear Fusion.

2. Latent Heat: It is the heat required to convert a solid into a liquid or vapour, or a liquid into a vapour, without change of temperature.

3. Boiling Point: Simply it is the temperature at which a liquid boils and turns to vapour.

⇔ But it can be also defined as the temperature at which the vapor pressure of the liquid equals the pressure surrounding the liquid and the liquid changes into a vapor is called Boiling Point.

4. Latent Heat of Vaporization: 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. 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.

Hope I answered your question.

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