Physics and Chemistry- Humidification Flashcards
what is the term for the mass of water vapor in a given volume of air
Absolute humidity
what is the term for a ratio of the actual amount of water vapor in the air at a given temp to the maximum amount of water vapor that the air can hold at that temp
relative humidity
what is the formula for relative humidity?
RH% = (Actual VP / Saturated VP) x 100%
what happens to relative humidity as temp falls, bc saturated VP falls
Relative humidity increases
Inspired gas is quickly humidified to what % (relative humidity) when breathing through he nose?
100%
air is saturated with what by the time it reaches the trachea?
H2O
what is the partial Pressure of saturated water vapor at 37 C?
47mmHg
what are the soda lime canisters made up of
CaOH2
NaOH
KOH
what is the largest component on the soda lime canister
Ca(OH)2
make up 94%
what is the size of the soda lime granules?
4-8 mesh
in the soda lime canister what is added to increase the hardness and reduce dust
silica