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प्रश्न
Evaporation of a liquid at room temperature leads to a ____________ effect.
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उत्तर
Evaporation of a liquid at room temperature leads to a Cooling effect.
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संबंधित प्रश्न
Boiling takes place from the
Differentiate between melting point and boiling point, giving atleast one example of each.
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 |
The boiling point of water is defined as ______.
What is the physical state of water at 100°C.
During summer, water kept in an earthen pot becomes cool because of the phenomenon of
Choose the correct statement of the following
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.
A liquid changes into a gas at a constant temperature known as its ______.
