Define pressure.. and air pressure
Answers
Answer:
Pressure:-)
Pressure is force per unit area.
To calculate pressure, we can use parameter as well as manometer. We should use Mercury to calculate pressure by these Apparatus due to :-
Density of mercury is very high and we know that density inversely proportional to space of moment. Mercury is non volatile and does not react with glass.
Air pressure:-
Pressure exerted by air is generally known as air pressure .
Answer:
Pressure is the force applied perpendicular to the surface of an object per unit area over which that force is distributed. Gauge pressure is the pressure relative to the ambient pressure. Various units are used to express pressure.
Air pressure, also known as barometric pressure, is the pressure within the atmosphere of Earth. The standard atmosphere is a unit of pressure defined as 101,325 Pa, which is equivalent to 760 mm Hg, 29.9212 inches Hg, or 14.696 psi.
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