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phymatter
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can pressure be less than 1 atm in a container kept on the ground of the Earth , i am getting puzzled , pl. help!
cragar said:yes is we remove air from it and seal it.
Redbelly98 said:If you seal the container, and then the temperature cools, that would make the inside pressure less than 1 atmosphere.
When pressure is less than 1 atm, it means that the amount of force being exerted on a surface is less than the atmospheric pressure at sea level, which is defined as 1 atmosphere (atm).
Units such as millimeters of mercury (mmHg), torr, or pascals (Pa) are commonly used to measure pressure less than 1 atm. These units are smaller and more precise than atm, which is typically used to measure standard atmospheric pressure.
Yes, pressure can be negative and less than 1 atm. Negative pressure is typically observed in systems where there is a vacuum, meaning there is a lack of air or other gas particles. In this case, the pressure is below atmospheric pressure and can be measured as a negative value.
Pressure less than 1 atm can cause gases to behave differently compared to when they are at standard atmospheric pressure. For example, at lower pressures, gases tend to expand more and take up a larger volume. This can also affect the boiling point and density of gases.
Some common examples of pressure less than 1 atm include the pressure inside a vacuum cleaner, the pressure inside a bottle of carbonated soda, and the pressure in high-altitude environments. In general, any situation where the amount of force exerted is less than the atmospheric pressure at sea level would be considered pressure less than 1 atm.