Question

What is the full form of the atm in terms of chemistry?

Answer 1

Atmospheric pressure:

• Atm in chemistry stands for atmospheric pressure at sea level.
• It is defined as the pressure exerted by the weight of the atmosphere, which at sea level has a mean value of approximate $101,325$$\mathrm{pascals}\left(\mathrm{pa}\right)$
• This value is used as a reference pressure or standard pressure sometimes.
• Atm is a unit of pressure.