Question

Units of Pressure
Pressure (P) = Force N
=Nm-2
Area
m.
273.75%. It is the average pressure of atmosphere at the sea level. Thus, one
atmosphere can support 760mm Hg at sea level. The mm Hg unit is also called the
torr, after the Italian scientist Evangelista Torricelli, who invented the barometer.
Thus, 1 atm pressure at 273K (called the standard pressure) equals to 76 cm Hg or
760 mm Hg or 760 torr.
in Sl pressure is expressed in derived units called Pascals. One Pascal (Pa)
is defined as the pressure exerted by a force of one Newton (7N) acting on an area
one square meter
1 Pa =
1 N/mor Nm 2
In many cases, it is more convenient to express pressure in kilopascals
(kPa). The standard atmosphere (1 atm) is equal to 1.013 25 x 105 Pa, or 101.325
kPa.
.
The SI unit of force is the Newton (N), whereas the unit of area is m?
At sea level, the atmosphere exerts a pressure of 760mm Hg. This is used to
define another pressure unit called atmosphere (atm). One atmosphere is the force
exerted btcm 50mm Hoon Column of mercury on an area of 1cm at​

Answer 1

Answer:

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