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Why do you not experience a drop in air pressure when you travel via airplanes even though airplanes travel at high altitudes?
Wiki User
∙ 13y ago
It is because an aeroplane's cabin is pressurized, meaning that it is sealed off from the atmosphere. This prevents air escaping and keeps the pressure constant.
Wiki User
∙ 13y ago
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Why do jet airplanes fly at altitudes above 30000 ft though it takes a lot of fuel to climb that high?
hyuikk465
Does freezing feel colder in high altitudes?
No, though higher altitudes will be at the freezing point more often.
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Water boils when the vapor pressure due to the temperature of the water is equal to the pressure outside. The air pressure on mountains is slightly less because there is less atmosphere above you, so water boils at a lower temperature (only by a few degrees, though) at higher altitudes. Because of this, you need to boil food at higher altitudes longer to compensate and make sure it is cooked as much as if you boiled the same food at a higher temperature at a lower altitude for a shorter amount of time.
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Modern airliners fly at altitudes in excess of 30,000 feet. At such heights the air is very thin and humans cannot get enough oxygen. Prolonged exposure to such conditions can be fatal. A pressurized cabin, though, has air pressure and oxygen levels that are habitable and does not but people at any risk.
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== == Pressure has an effect on the freezing point of water, though it isn't as substantial as the effect of pressure on boiling point. We could say that these values are at standard pressure, but realistically there is no noticeable difference of water's freezing point on various altitudes on earth. But it should be noted that if there are ions dissolved in the water, the freezing point will drop significantly due to the added solute. The melting point of water is the same as the freezing point of water; 32 degrees Fahrenheit or 0 degrees Celsius.
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