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प्रश्न
The fixed temperature at which matter changes state from solid to liquid is called ______.
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उत्तर
The fixed temperature at which matter changes state from solid to liquid is called melting point.
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संबंधित प्रश्न
Differentiate between melting point ,giving atleast one example of each.
Explain the term Melting Point.
Describe an experiment to demonstrate that a substance absorbs heat during melting without change in its temperature.
Some ice is taken in a beaker and its temperature is recorded after each one minute. The observations are listed below
| Time (in minute) | Temperature (in °C) |
| 0 | 0 |
| 1 | 0 |
| 2 | 0 |
| 3 | 0 |
| 4 | 0 |
| 5 | 0 |
| 6 | 3.8 |
| 7 | 7.6 |
| 8 | 11.4 |
From the above observations, what conclusion do you draw about the melting point of ice?
State the melting point of ice.
Analogy:
Melting: ice into water on heating,
freezing: _______.
Water as ice has a cooling effect, whereas water as steam may cause severe burns. Explain these observations.
A glass tumbler containing hot water is kept in the freezer compartment of a refrigerator (temperature < 0°C). If you could measure the temperature of the content of the tumbler, which of the following graphs (Fig.1.2) would correctly represent the change in its temperature as a function of time.
Ice does not melt rapidly because of ______.
Explain the following effects of heat.
Change in state
