What is major difference between air and pressure?
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Atmospheric pressure is what you measure with a mercury barometer. Let me be more specific. Pressure is the amount of force per unit area that a gas exerts on a surface. If the pressure on both sides of the surface are equal then the relative pressure is zero.
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Atmospheric pressure is what you measure with a mercury barometer. Let me be more specific. Pressure is the amount of force per unit area that a gas exerts on a surface. If the pressure on both sides of the surface are equal then the relative pressure is zero.Oct
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