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since Mercury (Hg) is much more dense than water, x mm of Hg is a higher pressure than x inches of water column (in wc) or x mm of water column.
Inches of water and millimeters of mercury are both the measure of pressure by equating the pressure to a height of a column of fluid (pressure-fluid height relationship) and thus, the density of the fluid greatly affects the pressure measurement.
What else can I help you with?
What is the mass of 3.00 L of water at 4 degrees C?
Approx 3 kilograms. The density of PURE water at 4 deg C AND at the pressure of 760 mmof mercury is not 1 kg/litre but 0.9999720 kg/L. But for all practical purposes 3 kg is a good enough answer.
How youcan convert kpa to mmof Hg?
How can you convert kPa -> mmHg ?1Pa = 1 N/m² 1kPa = 1000N/m²The pressure of 1 mmHg is related to the force given by the mass of Hg over an given area.Mass Hg m = v * density Hgv = area 1 m² * height 0,001 m = 10^-3 m³density Hg = 13,595 kg/dm³ = 13595 kg/m³Mass Hg m = 10^-3[m³] * 13595 [kg/m³] = 13,595 kgThe force F = m * a a=g= gravity= 9,81 m/s²Force F = 13,595[kg] * 9,81[m/s²] =133,3 [kgm/s²] = 133,3 NDefinition 1N = 1kgm/s²The force F 133,3 N (1mm Hg ) over 1 m² give a pressure P = 133,3 N/m²P = 0,1333kPaThe pressure given by 1mmHg = 0,1333kPathe inverse give us the answer of the question1kPa = 1mmHg * 1 / 0,1333 = 7,5 mmHgRoger
