In gases, the particles move randomly at high speed and they collide with each other and with the container.

In gases, the particles move randomly at high speed and they collide with each other and with the container.
Substance | Melting point(°C) | Boiling point(°C) |
X | -219 | -183 |
Y | 119 | 445 |
Z | -15 | 78 |