McqMate
| Q. |
Absolute Zero is defined as – |
| A. | The temperature at which all molecular motion ceases |
| B. | At which water boils at 298K |
| C. | At which liquid Helium boils |
| D. | At which the volume becomes zero |
| Answer» A. The temperature at which all molecular motion ceases | |
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Explanation: Absolute zero is the temperature at which all motion in matter stops and is thought to be unreachable. It is the point at which the fundamental particles of nature have minimal vibrational motion, retaining only quantum mechanical, zero-point energy-induced particle motion. |
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