Advertisements
Advertisements
Question
Explain the term vaporization.
Advertisements
Solution
“Change of liquid to vapours (gas) on heating at constant temperature is called VAPORIZATION.”
When we heat a liquid, the temperature starts rising till it starts changing into vapours, and then the temperature remains constant for some time, though we are supplying heat. This heat supplied is being used to change every molecule of liquid into vapours and temperature does not rise till the whole of liquid is changed into vapours.
APPEARS IN
RELATED QUESTIONS
Boiling takes place from the
Differentiate between melting point and boiling point, giving atleast one example of each.
Describe an experiment to demonstrate that water absorbs heat during boiling at a constant temperature.
A pressure cooker is based on the principle that boiling point of water increases with the ______.
During summer, water kept in an earthen pot becomes cool because of the phenomenon of
Which condition out of the following will increase the evaporation of water?
The phenomenon of change of a liquid into the gaseous state at any temperature below its boiling point is called ____________.
We would have observed that the plate that covers the cooked food items has water droplets inside. Why? Explain.
Assertion (A): Burning of a candle is considered a physical as well as chemical change.
Reason (R): Melting of wax is a physical change melted wax turns into vapours and then bums which is a chemical change.
Assertion (A): No-new substance is formed when water is heated to get steam.
Reason (R): Conversion of water into steam is a physical change.
