Asked in ScienceAtmospheric Sciences
Is pressure in a balloon less than atmospheric pressure?
Can mean effective pressure less than atmospheric pressure?
Asked in The Difference Between
Which is true about intrapulmonary pressure and intrapleural pressure?
Asked in Science
Why would a balloon inside a bell jar inflate when pressure is decreased within the jar?
The balloon exists in a separate pressure system from the bell jar itself. As the balloon is open to the surrounding air, the pressure within the balloon is 1 atm (1 atmospheric unit of pressure = 105 Pa). When pressure is decreased within the jar, the pressure within the jar decreases to a value lower than 1 atm. Therefore, to counter the low pressure created in the jar, the atmospheric air moves into the balloon and pushes the balloon into the jar to attempt to equalize the pressure in the balloon and in the jar. Therefore the balloon inflates.
Asked in Earth Sciences, Atmospheric Sciences
Why is the atmospheric pressure at the top of mt Everest 5 lbin squared much less than the atmospheric pressure here on earth 14.7 lbin squared?
Asked in Physics
What causes a balloon to fall to the ground?
Asked in Cardiovascular Health
What pressure in the lungs is lower than atmospheric pressure?
Asked in Physics
Why does a balloon filled with helium rise with a balloon filled with an equal volume of average atmospheric air does not?
Asked in Science
Why blowing air into a balloon causes high air pressures?
This question is quite confusing, but nonetheless I'll attempt an answer. The air around us is constantly pushing against everything; atmospheric pressure. when you blow air into a balloon, you're pushing gas molecules at high pressure into the balloon. These air molecules crash into each other and the walls of the balloon, causing it to inflate. The air pressure in the balloon is higher than atmospheric pressure; or it would be crushed. This is a really hard topic to understand- hope this helps!
Asked in Chemistry
Why does water boil at a less temperature in the mountains?
Asked in Meteorology and Weather, Physics, Chemistry
What happens to a weather balloon or any balloon that is sent high into the atmosphere?
Once the balloon gets high enough in the atmosphere, the ambient atmospheric pressure becomes very low (say 20mb = 2000Pa). There is a pressure gradient force from the high pressure of the air inside the balloon to the air in the environment outside of the balloon, working across the balloon material. Once this PGF becomes stronger than the tension of the balloon material, the balloon will pop.
What is the atmospheric pressure 3 miles above the earth's surface?
What causes the air pressure inside an inflated balloon?
The elastic contraction of the rubber in the balloon's membrane causes the pressure in the air inside an inflated balloon. When you inflate a balloon, you have to expand the latex of the balloon, which stretches when filled with air from a pressure of 760 mm Hg to as high as 840 (about 10% higher than standard atmospheric pressure). If you inflate a non-elastic mylar balloon, it takes no effort: the air inside is at the same pressure as the air outside.
Asked in Physics
When will the helium balloon stop rising?
It will stop rising when one of two things occur: The balloon burts because the atmospheric pressure on the outside is signifcantly less that the balloons internal pressure. If the former does not occur, the balloon will stop rising when its bouyant force is equalized. Because Hellium is lighter than air, it will float on top of air. Once it reaches the "surface" of air, it will stop rising.
Point of a liquid is that temperature at which water vapor pressure is equal to the total atmospheric pressure?
The normal boiling point (also called the atmospheric boiling point or the atmospheric pressure boiling point) is the temperature at which the vapor pressure of a liquid equals the atmospheric pressure at sea level, 1 atmosphere. The normal boiling point of water is about 100 degrees Celsius at a pressure of 1 ATM (i.e., 101.325 kPa). General Useful Information: The boiling point of a liquid is the temperature at which the vapor pressure of the liquid equals the environmental pressure, but the environmental pressure may or may not be equal to the atmospheric pressure at sea level, 1 ATM. If the surrounding environmental pressure is less than atmospheric pressure, then the boiling point is less than the normal boiling point. If the surrounding environmental pressure is greater than atmospheric pressure, then the boiling point is greater than the normal boiling point. At the boiling point, adding enough heat to the liquid will cause the liquid to vaporize (that is boil or form a gas).
Asked in Food & Cooking
Why is high pressure steaming faster than atmospheric steaming?
Asked in Meteorology and Weather
Explain why a helium weather balloon expands as it rises in the air Assume that the temperature remains constant?
When the helium balloon starts gaining height, the pressure decreases and as the gas molecules are very freely movable (higher than the normal). They move apart from each other in the mean while they make the balloon to expand. The decrease in atmospheric pressure relative to pressure inside the balloon causes it to expand.
Asked in Science, Physics, Hot Air Balloons
Wherever the balloon is what can you say about the pressure of the air inside and outside the balloon?
Usually, the air pressure inside a balloon is very high because the plastic outer shell of a balloon wants to contract and press the air into a small space. High in the atmosphere, air pressure is much lower than on the ground. When the air pressure outside a balloon is bigger than the air pressure inside, the balloon switches from wanting to push in on the air to the air pushing on the balloon. as this happens to some parts of a balloon and not others, it is uneven and the balloon pops. Answer: There are two distinct cases: For child's rubber balloon the air inside is at higher pressure because it is being squeezed by the rubber that wants to return to its original size. Just like you have to apply pressure to a rubber band to keep it stretched. In the case of hot air balloons the pressure on the inside of the balloon is the same as the atmospheric pressure. The balloon in this case is like an upside down bucket of air that would like to rise. It fills the container but shares the pressure of its surroundings.
Asked in New Delhi
Is atmospheric pressure is same in shimla and delhi?