Question

One atmospheric pressure is equal to

Answer 1

Dear student,
Atmospheric pressure, sometimes also called barometric pressure, is the pressure within the atmosphere of Earth (or that of another planet).

In most circumstances atmospheric pressure is closely approximated by the hydrostatic pressure caused by the weight of air above the measurement point.

The standard atmosphere (symbol: atm) is a unit of pressure defined as
101325 Pa (1.01325 bar),

Regards