ページ1:

气体性質
人流动性:容器內均匀擴散
体積分子v小间距大
Vgas = V鴦
VT PU
大气体力
jt £ tp &y (Hg Tuit)
1 atm = 76cmHg = 760 mm Hg = 760 Jord
=1033.6cmH2O=10336mmH2O=1033.6
gu / um² = 10336 kg / m²
= 1015 × 105 ny v = 1013×105 Pa = 1013 hPa
=1.013bar
m
压力计判说
colse
open
Pair
Pair
Pair
1.
Pgas
sh
Pgas (mmHg)
oh
v
V
Pgas
oh
pgas
V
Pgas - Pairtoh Pgas - Pair
Q. 图牛liquid密度0.88/cm², 求Pgas=?
pgas
68cm
=
Psg Pgas = oh ( cm Hg)
68 x 0.8 = x x 13.6
~
Mg密度
x=4 Pgas = 4 cm Hg
1
"
V
pgas
Pyas+oh=Pair
注意:單位
oh

ページ2:

Q.
從开口处抽出10cmHg,Pgas不变,求平衡后oh?
13Hg
60+20=80
60
40
抽
10
"
Peas 76-40
20
70
=56
36th = 76+(70-h) h=55um #
气体定律
7/
波v.P
PV=PU PV=K Pa
STP 0° latm 20.44/mod
* V.1
V=KT OK = -2730 v
VAT
NTP: 25°c latm 24.5% more
h P.T P=KT
P&T
亞v.nv=kn.分子量比:密度比Van
Q (=k)
30
Acm Paas
Intim下, 求①管口垂直↑②管口垂直↓,空气柱長度
19
①
+
1 Pgas-Pair
↓ Pair Pgas V = (Pair + PHq) v
Fo
76x30/= (76+19) h
↓Png 原
↑ Pgas
- PV=76×30A
h: 70x30
=VY A
76+19
(Pgas + PHg) V = Pair v vpgas = (Pair Pμg) v
76×304-(76-19)
Pas
PHg
↑ Pair
76×30
h=
76-19
-toum
2

ページ3:

理想气体方程式
1,082
n
-atm/e/mol/ /k
8/mol
W
PU: ART + PV= M MART + PM = "JRT + 1 = ART
Q AP G V z He (27°c). Hr (127°C). 03 (237°c)
①moeve = temple PN= nRT
=
300: 400:500=3:4:5#
②原子权比
= 3×1: 4x2.5×3
:
3:8.15#
3 : 4 : 5 #
? "" } *x+ = multe
© } } w XV = M RT way
300
© vc XM = d RT day) same
+
2
48
400
t
500 =
40:15:288#
40:15:288#
理想
真赏
四分子间作用力:0.
→ 凝液k時完全靜止
> 7 3 √ = 0
but 氕熊
接近理想
山
gas
He (bp÷4k)
先比
@一分
后比
分子量↓→作用力↓→bp↓
極性:电子云分布均匀→分子间作用力↓
- high temp > 速↑↑→碰撞→分子间作用力↓
low p > dgns & + (R) SET ZV↓
3

ページ4:

分瓜
Pt: 总 Pi:分
xi莫耳分率
Pt=&Pi
ni
ni
+ X₁+ Xrtist
nitt
nt
Pi = xipt
Pitt = mulet = Xitt
☆限制:不互反应的gas
计互相反应,先反业再算分析
Q. 85°C. V: 19.6l & pt No. Or, Px = 4atm, N₂ = 5bg, & Parti
N r : 5 6 1 × 8 = mol; Ox : X mod
4x19.6= (2+x)×0.082 x 298x÷1207 me
nay: nor & 5: 3 = 4 ×
=1.5atm
5+3
Q.
①总压在=?
PV = nRT
27°V
A
3x2 + 4×1
2+1
10
He
H
3atm
yatm
④混合
igns 4 + 7 6 3 1 = ?
© PHe = ? molt t = 3 x 2 = 4 × 1 = 3: V
AB gas mol bt;
B
:
342
= √ atm #
molte = √ be = 2;|
不互反业
W
PV=MPT
W₁
MPV
RT
1
(4x3x4
xx4x1
✓
PT
= 3.2
3
4

ページ5:

Q. √7°4
A
NHS
400mmHg
re
互反应
PV a mol
NH3(g) + Helio) NHYLLIS &
HUI
400XV
300mm Hg
300x3
3
-800
-800
100
LO
5
T
100 = Pex (x+3)
Pt = 20 mm Hg #