Matter in our surroundings

What are the chemical nature of a matter?

Particles of a matter are continuously moving .Particles of matter have space between them
Particles of a matter attract each other

what is the latent heat of fusion?

the amount of heat energy required to convert 1 kg of solid into liquid at atmospheric pressure.

what is melting point?

The minimum temperature at which solid melts to become a liquid at the atmospheric pressure.

what is latent heat?

the heat which gets used in changing the state by overcoming the forces of attraction.

what is fusion?

the process of change of solid into liquid is known as fusion

what is a boiling point

the temperature at which a liquid starts boiling at the atmospheric pressure.

direct change of solid into gas is called?

sublimation

direct change of gas into solid is called?

deposition

how can we liquefy gasses?

By Applying high pressure and lowering the temperature.

what is evaporation?

the phenomena of change of liquid into gas below its boiling point is called evaporation.

what happens when you pour some acetone on your palm?

the particles gain energy from the palm or surroundings and evaporate causing a cooling effect

what is latent heat of vapourisation

the amount of heat energy required to convert 1kg of liquid into gas at the atmospheric pressure.