As a characteristic property of gases, air compresses more easily as compared to liquids like water. This is because the intermolecular force of attraction among the gas particles is lesser than liquid particles. Hence they tend to have more space and can be compressed more easily.
air is composed OF matter
imagine that all the air around you is puting pressure on you. Then, when you go into a fluid, you can feel the pressure of the air and the water. The deeper you go, the more pressure is on top of you and eventually, you will get crushed.
Air exerts pressure in the same way that water exerts pressure on a diver. Air has weight, and because we are at the bottom of a blanket of air that surrounds the earth, the weight of that air is pressing down on us (creating pressure). If you go under water, you'll feel the additional pressure created by the weight of the water above you.
Atmospheric pressure is reduced with increasing water vapor because the water has a lower molecular weight than dry air. The same number of molecules occupy a given volume at a given pressure, so the total mass of water vapor laden air is lower than dry air. If you add up the weight of a column of the wet air it will weigh less than the same column filled with dry air, hence, wet air has a lower air pressure.
Pressure doesn't change when you change substance, 120 PSI in water equals 120 PSI in air.
air molecules in cold air exert more pressure because they are closer together and collide more often
Air pressure decreases as temperature increases, and air pressure increases as temperature decreases. This is because warmer air is less dense and exerts less pressure, while cooler air is denser and exerts more pressure.
The level of water in a tank directly affects the air pressure in the tank. As the water level increases, the air pressure also increases because the weight of the water exerts more force on the air in the tank. Conversely, as the water level decreases, the air pressure decreases as well.
One experiment that proves that air exerts pressure is the collapsing can experiment. In this experiment, a small amount of water is boiled in a can, and the can is then sealed. As the steam cools and condenses, it creates a vacuum inside the can, causing the outside air pressure to crush the can. This demonstration shows that air exerts pressure.
Water is denser than air, meaning there are more water molecules in a given volume than air molecules. This greater density of water results in more molecules colliding with the surface, creating higher pressure. Additionally, water is less compressible than air, so changes in volume have a more pronounced impact on pressure.
When air exerts a force, it is called air pressure. Air pressure is the force exerted by the weight of air above a given point.
Cold air exerts a low pressure. That is why cold air falls and hotter air rises above it.
Because your hand replaces the column of air which was 'pressing' on the content of the bottle. Your hand exerts more pressure than the air.(: :) :p P:
Air pressure is generally lower in warm areas because warm air is less dense and therefore exerts less pressure on its surroundings. Cool air is denser and exerts more pressure, so areas with cooler temperatures typically have higher air pressure.
Air exerts pressure in the same way that water exerts pressure on a diver. Air has weight, and because we are at the bottom of a blanket of air that surrounds the earth, the weight of that air is pressing down on us (creating pressure). If you go under water, you'll feel the additional pressure created by the weight of the water above you.
Because the air molecules are packed closer together in cold air.
They stay the same :)