Can Pressure Be Less Than 1 atm in a Grounded Container on Earth?

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Pressure inside a sealed container on Earth can indeed be less than 1 atm if air is removed before sealing. Cooling the container after sealing can further reduce the internal pressure below atmospheric levels. A rigid container, such as a light bulb, illustrates this concept effectively. The discussion emphasizes the relationship between temperature changes and pressure in a sealed environment. Understanding these principles is crucial for applications involving vacuum conditions.
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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!
 
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yes is we remove air from it and seal it.
 
cragar said:
yes is we remove air from it and seal it.

thanks cragar!
 
no problem
 
If you seal the container, and then the temperature cools, that would make the inside pressure less than 1 atmosphere.
 
Redbelly98 said:
If you seal the container, and then the temperature cools, that would make the inside pressure less than 1 atmosphere.

Assuming container is rigid.
 
A common light bulb is a good example.
 

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