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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
State the boiling point of water.
A certain quantity of water is heated from 20°C to 100°C. Its temperature is recorded after each 1 minute. The observations are:
| Time (in minute) | Temperature (in °C) |
| 0 | 20 |
| 1 | 30 |
| 2 | 40 |
| 3 | 50 |
| 4 | 60 |
| 5 | 70 |
| 6 | 80 |
| 7 | 90 |
| 8 | 100 |
| 9 | 100 |
| 10 | 100 |
| 11 | 100 |
| 12 | 100 |
What is the physical state of water at 100°C.
Water into steam on heating is called freezing.
Choose the correct statement of the following
Conversion of solid to vapour is called sublimation. Name the term used to denote the conversion of vapour to solid.
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.
A liquid changes into a gas at a constant temperature known as its ______.
Explain the terms boiling.
