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प्रश्न
Boiling takes place from the
पर्याय
the surface of the liquid
throughout the liquid
mid-portion of liquid
none of the above.
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उत्तर
throughout the liquid
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संबंधित प्रश्न
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.
A pressure cooker is based on the principle that boiling point of water increases with the ______.
What is the physical state of water at 100°C.
Water into steam on heating is called freezing.
The boiling points of diethyl ether, acetone and n-butyl alcohol are 35°C, 56°C and 118°C respectively. Which one of the following correctly represents their boiling points in kelvin scale?
____________ is the change of solid state directly to vapour state without going through the ____________ state.
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.
Why does the temperature of a substance remain constant during its melting point or boiling point?
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.
