How are pressure and volume related at a constant temperature?
The pressure of a gas is inversely proportional to its volume when temperature is constant. The product of pressure and volume is constant when temperature is constant. This relationship is known as Boyle’s law or Mariotte’s law . A constant temperature process is said to be isothermal .
What does the constant bombardment of gas molecules against the inside walls of a container produce?
The constant bombardment of gas molecules against the inside walls of a container produces Pressure. Explanation: Pressure is defined as Force per unit Area. In case of gases, the gas molecules have high Kinetic Energy and they move with high velocity.
Why could the pressure of a sample of gas at a constant volume fall 75 mm Hg group of answer choices?
Why could the pressure of a sample of gas at a constant volume fall 75 mm Hg? The temperature decreased. The air particles inside the tire increase their speed because their temperature rises.
Why does a can collapse when the air is removed from it?
The air inside a tin can exerts pressure against the interior surface that pushes the walls of the can outward and the air outside of the can exerts pressure that pushes the sides inward. The result is that the tin can collapses when the air inside is removed.
Is air stronger than water?
At sea level air pressure is actually stronger than water pressure. That means that the pressure pushing up from the water has to exactly equal the pressure pushing down from the air.
Why didn’t the empty can soda can crush before it was heated?
When the water vapor inside the can condensed, the can was empty. However, the water cannot flow into the can fast enough to fill the can before the air outside crushes it. CAUTION: Do not heat the can over high heat or heat the can when it is empty. This may cause the ink on the can to burn or the aluminum to melt.
What happens if there is no air pressure?
So, all your body fluids would freeze. When your skin was stretched to the max, it would burst like a balloon, and all the water inside your body (blood is mostly water) would come boiling out because there is no air pressure, but space is so cold that it would instantly freeze.
How much air is pushing on you right now?
Humor me. At sea level, because of the 60-mile column of atmosphere between you and outer space, there’s about 15 pounds per square inch of air pressure pushing down on every part of your body. Now go pick up a 15-pound weight.
How much weight of air is always over your head?
How much pressure can humans survive?
A person can withstand perhaps 100 atmospheres of pressure if they aren’t breathing air – divers do it. If they are breathing air, the limit is just a handful of atmospheres. Not sure exactly how many it takes before oxygen becomes toxic, though.
What is the pressure inside human body?
Pressure in the Body
|Body system||Gauge pressure in mm Hg|
|Chest cavity between lungs and ribs||−8 to −4|
|Inside lungs||−2 to +3|
Is BP higher than atmospheric pressure?
The atmospheric pressure is around 760 mm of HG, and the pressure of blood is around 120/80 mm of HG. So the pressuure of the human body is slightly greater than the pressure of the atmosphere but not enough to have any major impact.
Can air pressure kill you?
Here are a few ways that compressed air can kill or seriously injure a person: Compressed air blown into the skin can obstruct an artery and result in an embolism. Inhaled compressed air can rupture your lungs or esophagus. Compressed air blown into the ear can rupture eardrums and cause brain damage.
What keeps a person from being crushed by air pressure?
What keeps a person from being crushed by air pressure? The pressure inside a person’s body balances the air pressure outside, resulting in a net force of zero. If you squeeze a container filled with fluid, the pressure within the fluid increases equally throughout the fluid.
Is gravity atmospheric pressure?
The air around you has weight, and it presses against everything it touches. That pressure is called atmospheric pressure, or air pressure. It is the force exerted on a surface by the air above it as gravity pulls it to Earth. Atmospheric pressure is commonly measured with a barometer.
Why don’t we feel the weight of the atmosphere?
The atmosphere is a mixture of gases and it pushes on us with atmospheric pressure. However, we don’t feel the weight of atmosphere. This is because the pressure pushes in all directions. You might think that we don’t feel the pressure – but you would certainly notice if the atmosphere disappeared.
Is air pressure stronger than gravity?
In some situations, air pressure is stronger than gravity. This experiment demonstrates the strength of air pressure as it keeps the water in a glass in place — even when the glass is turned upside down.
Does gravity affect the air we breathe?
Answer 2: Zero gravity has nothing to do with breathing. If there is air, then you can breathe it; if there isn’t air, then you can’t. Gravity on planets tends to attract atmospheres, and this means that planets with gravity may have breathable atmospheres, unlike the vacuum of space.
Does air affect gravity?
Each object with mass in the universe is attracted to all other objects regardless of size or distance. Whether you are on the Moon, Earth or deep in outer space, gravity is present. Air or an atmosphere is not needed for gravity.
Do you need air for gravity?
Mass is required for gravity. You don’t need air or an atmosphere. Higher mass means higher gravitational pull. Most of these ideas are tied to other planets without atmospheres, or the moon (“the moon doesn’t have any air or atmosphere and it pulls the Earth water”).