Advertisements
Advertisements
प्रश्न
State the melting point of ice.
उत्तर
MELTING POINT OF ICE: “Is the constant temperature at which it starts (melting) changing from ice to water.”
It is 0°C for ice.
APPEARS IN
संबंधित प्रश्न
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?
Analogy:
Melting: ice into water on heating,
freezing: _______.
A student heats a beaker containing ice and water. He measures the temperature of the content of the beaker as a function of time. Which of the following (Fig. 1.1) would correctly represent the result? Justify your choice.
A puddle of water gets pooled around the glass of ice cream or a glass of ice cubes. When it is kept at room temperature. Give reason.
Sweating causes cooling because water has a ______.
Ice does not melt rapidly because of ______.
A change of state is a change of a substance from ______.
The solid, liquid, and phases of water can coexist in equilibrium at ______.
Explain the following effects of heat.
Change in state
