You need to memorize standard pressure in each unit.
http://www.jiskha.com/display.cgi?id=1272497506
If you know those, three of the above are above standard pressure, one is below.
http://www.jiskha.com/display.cgi?id=1272497506
If you know those, three of the above are above standard pressure, one is below.
Let's convert each pressure to atmospheres (atm), which is commonly used as a standard unit of pressure:
1. 1.1 atm (already in atm)
2. 16.7 psi: To convert psi to atm, we can use the conversion factor 1 atm = 14.7 psi.
Therefore, 16.7 psi * (1 atm / 14.7 psi) = 1.13 atm (rounded to two decimal places)
3. 740 mm Hg (millimeters of mercury): To convert mm Hg to atm, we can use the conversion factor 1 atm = 760 mm Hg.
Therefore, 740 mm Hg * (1 atm / 760 mm Hg) = 0.97 atm (rounded to two decimal places)
4. 111,458 Pa (Pascals): To convert Pa to atm, we can use the conversion factor 1 atm = 101325 Pa.
Therefore, 111,458 Pa * (1 atm / 101325 Pa) = 1.10 atm (rounded to two decimal places)
Now that we have converted all pressures to atm, we can compare them:
1.1 atm, 1.13 atm, 0.97 atm, 1.10 atm
From the conversions, we can see that the lowest pressure is 0.97 atm, which corresponds to 740 mm Hg.