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प्रश्न
Explain the terms boiling point.
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उत्तर
The temperature at which a liquid starts changing into vapors or gas at a constant temperature is called its boiling point.
संबंधित प्रश्न
Explain the term vaporization.
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 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 |
A pressure cooker is based on the principle that boiling point of water increases with the ______.
The boiling point of water is defined as ______.
Boiling of egg results in ______ change.
What is the physical state of water at 100°C.
By the process of Heating of water, ______ is obtained.
Water into steam on heating is called freezing.
During summer, water kept in an earthen pot becomes cool because of the phenomenon of
Choose the correct statement of the following
A sample of water under study was found to boil at 102°C at normal temperature and pressure. Is the water pure? Will this water freeze at 0°C? Comment.
Why does the temperature of a substance remain constant during its melting point or boiling point?
A liquid changes into a gas at a constant temperature known as its ______.
Explain the terms boiling.
