Veeaur õhus
õhu kohta.
Arvutame vee auru ruumala normaaltingimustel:
Kus P0=760mmHg, V0=?, T0=273K.
P1=729mmHg, V1=21,1L/1m3, T1=(25+273)=298K
V0=(729mmHg*21,1L/1m3*273K)/(760mmHg*298K) = 18,54L/1m3
n(vee aur) = V/Vm = 18,54L/22,4L/mol = 0,828mol/1m3
m(vee aur) = n*M = 0,828mol*18g/mol = 14,9g/1m3 (25 oC juures)
1
P vee aur 3oC juures= 5,69mmHg
Püld = 104,5kPa = 784mmHg
Vveeaur 3oC juures = (PH2O*100)/Püld = (5,69mmHg*100)/729mmHg = 0,726%
100L õhus on 0,7261L veeauru või 7,26L veeauru 1m3 õhu kohta (3 oC juures).
Kus P0=760mmHg, V0=?, T0=273K.
P1=784mmHg, V1=21,1L/1m3, T1=(3+273)=276K
V0=(784mmHg*7,26L/1m3*273K)/(760mmHg*276K) = 7,41L/1m3
n(vee aur) = V/Vm = 7,41L/22,4L/mol = 0,330mol/1m3
m(vee aur) = n*M = 0,330mol*18g/mol = 5,95g/1m3 (3 oC juures)
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