Advertisements
Advertisements
Question
Alka was making tea in a kettle. Suddenly she felt intense heat from the puff of steam gushing out of the spout of the kettle. She wondered whether the temperature of the steam was higher than that of the water boiling in the kettle. Comment.
Advertisements
Solution
The temperature of both boiling water and steam is 100°C but steam has more energy because of latent heat of vaporisation. Hence, steam is hotter than boiling water.
APPEARS IN
RELATED QUESTIONS
The temperature at which a liquid gets converted into its vapour state is called its
Rapid conversion of water into steam is an example of
Differentiate between melting point and boiling point, giving atleast one example of each.
A liquid can change into vapour state at a fixed temperature.
Describe an experiment to demonstrate that water absorbs heat during boiling at a constant temperature.
By the process of Heating of water, ______ is obtained.
Choose the correct statement of the following
Which condition out of the following will increase the evaporation of water?
We would have observed that the plate that covers the cooked food items has water droplets inside. Why? Explain.
Explain the terms boiling.
