Work the following problems for practice and check your answers below.
(Absolute) Humidity Table
- A gas at 72 degrees F has an actual humidity of 5.82 mg/L. Calculate the
relative humidity and the humidity deficit.
- Calculate the humidity deficit of a gas that is saturated at 5 degrees C.
- A gas at 37 degrees C has a relative humidity of 10%. Calculate the actual
humidity and the humidity deficit.
- 0.03 mL of water is evaporated into 1 liter of dry gas at 30 degrees C.
Calculate the relative humidity and the humidity deficit.
- The American National Standards Institute (ANSI) has set a minimum humidity
level of 10 mg/L to be delivered to the upper airway to minimize mucosal
damage. If the bubble humidifier your hospital uses provides 100% RH at an
operating temperature of 16 degrees C, what is the humidity level delivered
to the upper airway in mg/L?
- The ANSI standard for the minimum humidity level to be delivered to the
patient when the upper airway is bypassed is 30 mg/L. If a patient is intubated
in the emergency room and breathes room air at 72 degrees F and 30% RH, how
much water vapor will the lower airway add in 2 hours if the patient's
minute ventilation is 6 L/min?
- After a convention party in Phoenix, AZ, you hike in the desert for 6 hours.
If the temperature was 86 degrees and the % RH was 10 %, how much water in
mL did your upper airway add to your inspired air if your minute ventilation
was 8 L/m?