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प्रश्न
Explain the terms boiling.
उत्तर
Boiling is the process of converting a liquid to a gas at a constant temperature.
संबंधित प्रश्न
The temperature at which a liquid gets converted into its vapour state is called its
Boiling takes place from the
Explain the terms vaporization.
Describe an experiment to demonstrate that water absorbs heat during boiling at a constant temperature.
During summer, water kept in an earthen pot becomes cool because of the phenomenon of
The phenomenon of change of a liquid into the gaseous state at any temperature below its boiling point is called ____________.
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.
Conversion of solid to vapour is called sublimation. Name the term used to denote the conversion of vapour to solid.
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.
