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प्रश्न
The phenomenon of change of a liquid into the gaseous state at any temperature below its boiling point is called ____________.
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उत्तर
The phenomenon of change of a liquid into the gaseous state at any temperature below its boiling point is called Evaporation.
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संबंधित प्रश्न
A liquid can change into vapour state at a fixed temperature.
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 |
How is the boiling point of water affected when some salt is added to it?
A pressure cooker is based on the principle that boiling point of water increases with the ______.
The boiling point of water is defined as ______.
What is the physical state of water at 100°C.
By the process of Heating of water, ______ is obtained.
Choose the correct statement of the following
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.
