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A mechanical gauge is used when measuring gas pressure in a
sealed container. For all common pressure gauges, the
pressure indicated on the gauge is?
Less than the absolute pressure (Gauges (and gauge
pressures) ignore the ambient (barometric) pressure around
us.
Absolute pressure can be defined as?
The amount of pressure within the sealed vessel + the amount
of pressure outside the sealed vessel.
Gauge pressure?
The amount of pressure within the sealed vessel only
,Ambient pressure?
The amount of pressure outside of the sealed vessel only.
Absolute pressure can be defined as?
Gauge pressure + atmospheric pressure, Total pressure, True
pressure
1 Atm worth of pressure?
760 mmHg, 14.7 PSI, 33 FSW
Barometric pressure in Denver, CO (elevation 5000 ft) is less than
barometric pressure at sea level true or false?
True
To Convert from ATA to mmHg
Multiply by 760
To Convert from ATA to FSW
Subtract 1, then multiply by 33
,To convert from ATA to PSI
Subtract 1, then multiply by 14.7
To convert from FSW to ATA
Divide by 33, then add 1
To convert from FSW to ATA
Add 33, then divide by 33
To convert from PSI to ATA
Divide by 14.7, then add 1
To convert from PSI to ATA
Add 14.7, then divide by 14.7
To convert from mmHg to ATA
Divide by 760
, To convert from PSIG to PSIA
Add 14.7, PSIG means "pound per square inch gauge". PSIA
means pounds per square ince absolute.
Boyle's law is about the?
Pressure-volume relationship. Boyle's law says that with
temperature constant, the volume of a gas is inversely
proportional to the pressure.
According to Boyle's Law, (assuming the temperature remains
constant) when the pressure increases, the volume?
Decreases proportionally
When applying Boyle's law to the human body, we worry
about air- filled spaces being shrunk ( or squeezed) when
pressure around the body increases. This is known as?
Barotrauma
Boyle's law equation?
P1 x V1=P2 xV2