It usually increases. Low pressure cells (generally warm air) is usually associated with fair weather and High pressure cells (generally cold air) is usually associated with storms.
It incresses 8-----
pressure decreases
nothing
At constant temperature if the volume of a gas decreses what should I do now
The pressure of the gas would also decrease.
from the gas laws and Charles 2nd law, it can be concluded that pressure is directly proportional to temperature..hence if the temp decreases; pressure also decreases as the kinetic energy of the molecules decreases; the collisions decrease hence pressure of the molecules inside the container decrease.
volume decreases considering the pressure is constant
When the temperature of a gas is increased at a constant pressure, its volume increases. When the temperature of a gas is devreased at constnt pressure, its volume decreases.
Assuming the volume is kept constant, the pressure will also decrease in this case.
When pressure decreases, entropy increases. Increases in entropy correspond to pressure decreases and other irreversible changes in a system. Entropy determines that thermal energy always flows spontaneously from regions of higher temperature to regions of lower temperature, in the form of heat.
it decreases.
Since pressure is inversely proportional to volume(according to Boyle's law), if volume decreases, pressure will increase and vice versa i.e. volume increases pressure decreases!
...pressure decreases.