Question

Explain the following terms 1.boiling 2.melting 3. Freezing 4. Humidity

Answer 1

Answer:

Boiling : The temperature at which a liquid starts boiling at the atmospheric pressure is known as its Boling Point. Boiling is a bulk phenomenon. Particles from the bulk of the liquid gain enough energy to change into the vapour state.Boiling Point of Water: 100° C (373K).

Melting : The temperature at which a solid start melting at the atmospheric pressure is known as its Melting . Melting Point of Ice: 0° C (273K)

Freezing : The temperature at which a liquid starts changing into solid at the atmospheric pressure is known as its Freezing Point. Freezing point and melting point have the same value for a given liquid.The freezing point of Ice: 0°C (273K)

Answer 2

BOILING:  

             The process at which liquid of the temperature reaches to 100°c and water starts vapourization.

MELTING:

              The process in which solid is converted into liquid on heating

FREEZING:

               The process in which liquid is converted into solid on cooling and it is also known as solidification.

HUMIDITY:

                 It is the amount of water vapour present in the air.The higher the temerature,the more water vapour the air can hold.so, high humidity levels are more likely to be in warm air.