Define Atmospheric Pressure. Write its importance. Derive P= F/A.
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Answer:
The pressure at any location on the Earth, caused by the weight of the column of air above it. At sea level, atmospheric pressure has an average value of one atmosphere and gradually decreases as altitude increases. Also called barometric pressure
Explanation:
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Explanation:
the pressure is defined as the force per unit area
The atmospheric pressure is measured with Barometer
1atm=760mm of Hg=76cm of Hg
the unit of high pressure 1bar=10⁶dyne/cm²
the unit of low pressure in Torr
1torr=1mm of Hg
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