Gases Reais
T= 0°C -> 273K
P= 1 atm -> 101325 Pa
Z= 1,00054 b=? z = 1+BP RT
1,00054 = 1+b.101325 8,314.273
1,00054-1 = b.101325 2269,722
5,4x= 44,64b b= 1,21x m³ x 1000000= 12,1cm³/mol
3.2
Z= 1,00054
T= 0°C -> 273K
P= 1atm -> 101325 = 107K a=? b=?
z= 1+ (b-()).p RT
Z= 1+(b-)).p T
z-1= . b-() T
1,00054-1= . b-()
5,4x= . b-()
5,4x= 44,64 . b-()
5,4x= b-() 44,64
1,20x = 273.b – 107b 273
1,20x= 166b 273
1,20x . 273= 166b
3,30= 166b
b= 1,98x ≈ 2,0x m³/mol
=
a= . Rb
a= 107 . 8,314 . 2,0x
a= 0,017 ≈ 0,018 Pa /mol²
3.3
T= 374°C
P= 22,1MPa
V= 0,0566 L/mol a=? b=?
R=?
= 3b
5,66x= 3b b= 1,88x m³/mol
=
22,1x=
22,1x=
a= 0,212Pa /mol²
647=
647=
0,32R= 1,68
R= 5,15 J/K mol
8,314 – 5,15 = 3,164
8,314 –––––––––– 100%
3,164 –––––––––– x x= 38%
=
= 3. 8,314. 647 8.22,1x
=16137,474 176800000
= 9,12xm³/mol
b= RTc 8Pc
b= 8,314. 647 8.22,1x
b= 5379,158 176800000
b= 3,042xm³/mol
a= 27(RTc)² 64Pc
a= 27(8,314.647)² 64.22,1x
a= 27(28935340,79) 1414400000
a= 0,552P /mol²
1m³ ––––––– 1000L
X ––––––– 0,0566L
X= 5,66xm³
9,12 - 5,66 = 3,46 x
5,66 –––––– 100%
3,46 x ––––– x
X= 61%
3.6
Tc= 32,3°C
Pc= 48,2 atm
Vc= ?
a)
Pv= nRT
V= RT n P
V= 8,314.305,45
1 4,88x
V= 5,203.m³/mol
5,203. m³ ( 1L _) Mol m³
0,5203L/mol
b)
v= 3RTc 8Pc
V= 3.8,314.305,45 8(4,88x)
V= 1,951xm³/mol
1,951xm³/mol (1L) = 0,1951L/mol