Why does density increase as pressure increases

Conversely, at lower altitudes with colder temperatures aircraft performance is greatly increased compared to its relative performance at that level with standard temperatures.

The density of air decreases more rapidly with height in warm air than in cold air. Water vapour is less dense than dry air. Therefore with increasing amounts of water vapour in air, with pressure and temperature constant, the air's density is decreased. Therefore, with increasing amounts of water vapour in the air, with pressure and temperature constant, density altitude is increased. However, this increase is less than one per cent of the total density, and therefore with the exception of low level regions in the tropics, the effect of water vapour on density is neglected.

As the density of the liquid increases, so does the pressure. If the liquid is open to the air, there will also be atmospheric pressure on its surface.

Calculate the pressure exerted by the water on the bottom of a 2. A stone is dropped into a lake. Calculate the increase in pressure on the stone caused by the water when it sinks from 1 m deep to 6 m deep. Calculate the depth of water in a dam when the pressure at the bottom is , Pa.

Change the subject of the equation. Skip to content Home Physics Why is pressure directly proportional to density? Ben Davis August 3, Why is pressure directly proportional to density? Does density of gas change with pressure? Is pressure and mass directly proportional? Why does pressure depend on mass of particles? Does increasing pressure increase mass? What happens when pressure decreases?