It depends on the temperature scale being used.
The temperature of air is decreased.
The temperature of air is decreased.
It decreases.
It drops.
the pressure will also decrease
When the temperature is increased the kinetic energy increases, and when it is decreased the kinetic energy decreases.
The Mass of a substance will not change with a reduction of temperature … even to -273C.
If temperature is decreased, particles have less kinetic energy, causing them to move slower and closer together. This can lead to a decrease in the volume of the substance as the particles lose energy and vibrate with less amplitude.
It boils
Water boils at that temperature.
It will start to smell. The volume will increase.
If the volume stays the same, the pressure will decrease.