It is the standard atmospheric pressure at sea level. It is equal to 1 atm.
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1 ATM = 101325 Pascals 1 Pascal = 1/101325 ATM
A common unit of pressure is the atmosphere, which is equivalent to 760mmHg and 101.3kPa. Thus, to convert a value from mmHg to kPa, we must divide by 760 mmHg/ATM and multiply by 101.3 kPa/ATM. In this case: 190 mmHg * (1 ATM / 760 mmHg) * (101.3 kPa / 1 ATM) = 25.3 kPa. This method of units conversion is called dimensional analysis, whereby a value is multiplied by several conversion factors, canceling out the original unit in order to achieve the desired unit.
How do you convert mm Hg to pascal?Answer1 mm Hg = 133.322 Pa760 mm Hg = atmospheric pressure = 101325 Pa133.322 times 760 mm Hg = 101325 Pa
One atmosphere is equal to 101325 Pascals. One pascal in SI units is 1 kg m-1 s-2. Hence, 1 atmosphere in SI units is 101325 kg m-1 s-2.
0.975 ATM = 98 791.88 Pa = 98.791 88 kPa