5. Explain the following:
(a) Temperature remains constant during melting of ice.
(b) Evaporation is a surface phenomenon.
6 Tivoline
Answers
Answer:
he ice particles are used by the heat and they are vibrating fast and the attraction forces are broken and it becomes liquid. This is the reason for the temperature remains constant when the ice is melting while continuous amount of heat is applied
The 'temperature of a substance' remains constant during its melting and boiling point because the change in any state of matter as n solid to liquid or the liquid to a gas involves crossing the 'latent heat of fusion' which causes a change in the intermolecular spacing of the molecules in the substance
Temperature: The rate of evaporation increases with an increase in temperature.
Surface area: The rate of evaporation increases with an increase in surface area.
Humidity: The amount of water vapour present in the air is called humidity.
Answer:
1.)temperature remains constant during melting if ice due to the latent heat of ice.
2.) Evaporation is a surface phenomenon as during evaporation molecules from the surface of liquid evaporates while in boiling cluster of molecules evaporate.
Rest the one u wrote as 6 tivoline, I don't understand that, I'm sorry, it will be much more clear if ur will be more precise about your question.