Advertisements
Advertisements
प्रश्न
Molecules of a substance are always in a state of............ and so they possess .............
Advertisements
उत्तर
Molecules of a substance are always in a state of motion and so they possess kinetic energy.
APPEARS IN
संबंधित प्रश्न
The temperature at which a solid convert into a liquid is called its .........
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?
The fixed temperature at which matter changes state from solid to liquid is called ______.
What is melting? Give example.
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.
In an endothermic process, the speed of the molecules is ______ hence they move faster.
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 ______.
Define latent heat of fusion?
