Physics and Chemistry- Humidification Flashcards Preview

► Med Misc 44 > Physics and Chemistry- Humidification > Flashcards

Flashcards in Physics and Chemistry- Humidification Deck (11)
1

what is the term for the mass of water vapor in a given volume of air

Absolute humidity

2

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

3

what is the formula for relative humidity?

RH% = (Actual VP / Saturated VP) x 100%

4

what happens to relative humidity as temp falls, bc saturated VP falls

Relative humidity increases

5

Inspired gas is quickly humidified to what % (relative humidity) when breathing through he nose?

100%

6

air is saturated with what by the time it reaches the trachea?

H2O

7

what is the partial Pressure of saturated water vapor at 37 C?

47mmHg

8

what are the soda lime canisters made up of

CaOH2
NaOH
KOH

9

what is the largest component on the soda lime canister

Ca(OH)2
make up 94%

10

what is the size of the soda lime granules?

4-8 mesh

11

in the soda lime canister what is added to increase the hardness and reduce dust

silica

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