Air in human lungs has a temperature of 37 .0 ° C and a saturation vapor density of 44 .0 g / m 3 . (a) If 2.00 L of air is exhaled and very dry air inhaled, what is the maximum loss at water vapor by me person? (b) Calculate the partial pressure of water vapor having this density, and compare it with the vapor pressure of 6.31 × 10 3 N/m 2 .
Air in human lungs has a temperature of 37 .0 ° C and a saturation vapor density of 44 .0 g / m 3 . (a) If 2.00 L of air is exhaled and very dry air inhaled, what is the maximum loss at water vapor by me person? (b) Calculate the partial pressure of water vapor having this density, and compare it with the vapor pressure of 6.31 × 10 3 N/m 2 .
Air in human lungs has a temperature of
37
.0
°
C
and a saturation vapor density of
44
.0
g
/
m
3
. (a) If 2.00 L of air is exhaled and very dry air inhaled, what is the maximum loss at water vapor by me person? (b) Calculate the partial pressure of water vapor having this density, and compare it with the vapor pressure of
6.31
×
10
3
N/m
2
.
Air in human lungs has a temperature of 37.0°C and a saturation vapor density of 44.00 g/m3.
(a)If 1.700 L of air is exhaled and very dry air inhaled, what is the maximum loss of water vapor in grams by the person?
____________g
(b)Calculate the partial pressure of water vapor having this density, and compare it with the vapor pressure of 6.31 ✕ 103 N/m2.
_________________N/m2
The vapor pressure is the pressure of the vapor phase of a
substance when it is in equilibrium with the solid or liquid phase of the
substance. The relative humidity is the partial pressure of water vapor in the air
divided by the vapor pressure of water at that same temperature, expressed as a
percentage. The air is saturated when the humidity is 100%. (a) The vapor
pressure of water at 20.0°C is 2.34 × 10³ Pa. If the air temperature is 20.0°C and
the relative humidity is 60%, what is the partial pressure of water vapor in the
atmosphere (that is, the pressure due to water vapor alone)?
The vapor pressure of water at 10 °C is 1300 Pa. (a) What percentage of atmospheric pressure is this? Take atmospheric pressure to be
1.013 x 105 Pa. (b) What percentage of the total air pressure at 10 °C is due to water vapor when the relative humidity is 100%? (c) The
vapor pressure of water at 30 °C is 4300 Pa. What is the relative humidity at this temperature if the partial pressure of water in the air
has not changed from what it was at 10 °C when the relative humidity was 100%?
(a) Percentage = Number i
(b) Percentage = Number ₁
(c) Percentage = Number i
Units
Units
Units
<
Physics for Scientists and Engineers: A Strategic Approach, Vol. 1 (Chs 1-21) (4th Edition)
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