Define atmospheric pressure.
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Atmospheric presure :--presure which is exerted on the surface of earth by atmosphere which contain different gases like carbon ,hydrogen,oxygen,nitrogen,carbon-dioxide etc .
at stp the stendered pressure is 1 atm
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Atmospheric pressure, sometimes also called barometric pressure, is the pressure within the atmosphere of Earth.
The standard atmosphere is a unit of pressure defined as 1,013.25 mbar, equivalent to 760 mm Hg, 29.9212 inches Hg, or 14.696 psi
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