40kpa等于多少mm水柱

1 atmosphere (atm) of pressure is equivalent to 760 mm of mercury (Hg) column, or 760 mmHg. To convert pascals (Pa) to mm of water column (mmH2O), we can use the following conversion factor:

1 Pa = 1 mmH2O / 13.616

Now, let's convert 40,000 pascals (40 kPa) to mm of water column:

40,000 Pa (1 mmH2O / 13.616 Pa) = 2935.7 mmH2O

So, 40 kPa is approximately equal to 2935.7 mm of water column.