Gases and Equilibria: chem core 1a

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pV=
=nRT
1 of 23
(p1V1)/T1 =
= (p2V2)/T2
2 of 23
Dalton's Law
ptotal = p1 + p2
3 of 23
Mole fraction (no units)
Xa=na/ntotal
4 of 23
pa=
Xa x ptotal
5 of 23
pV=
1/3 nMc^2 = nRT
6 of 23
rate of effusion=
√(1/M). (where M is molar mass)
7 of 23
van den Waals equation of state
{p+(an^2)/V^2} (V-nb)
8 of 23
R
8.314 JK^-1mol^-1
9 of 23
1N
mass x acceleration = kgms^-2
10 of 23
k theta
standard equilibrium constant
11 of 23
k delta is defined in terms of
activities (no units)
12 of 23
k delta =
activity of products^no moles/activity of reagents^no moles
13 of 23
activity of a pure solid
1
14 of 23
activity of a pure liquid
1
15 of 23
activity of a perfect gas
p/pdelta ( where pdelta=1 bar=1x10^5Pa)
16 of 23
activity of solution of A (ideal dilute solution)
[A]/[A]delta. (where [A]delta =1moldm^-3)
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Kp
equilibrium constant
18 of 23
kp=
Kc(RT)^∆n
19 of 23
z=
collision frequency, s^-1
20 of 23
1/z=
time of flight, s
21 of 23
lambda=
mean free path, m (varies with pressure)
22 of 23
root mean square (RMS) speed=
c=lambda x z
23 of 23

Other cards in this set

Card 2

Front

(p1V1)/T1 =

Back

= (p2V2)/T2

Card 3

Front

Dalton's Law

Back

Preview of the front of card 3

Card 4

Front

Mole fraction (no units)

Back

Preview of the front of card 4

Card 5

Front

pa=

Back

Preview of the front of card 5
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