All equations Flashcards

1
Q

SN2 rate equation

A

Rate= K [R-Hal][Nu]

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

SN1 rate equation

A

Rate= K[R-Hal]

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Total internal energy of a system

A

U= W + q

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Kinetic energy

A

Ekin= 1/2 mV2

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

work

A

w = f x d

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Newtons law of force

A

F = m x a

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Coulombs law

A

F = Kq1q2 / r2

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

energy

A

E = P x V

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Change in enthalpy

A

∆H = ∆U + p∆V

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

entropy

A

S= KB ln (omega)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

Change in entropy

A

-∆S= ∆H / T

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

spontaneous reaction with entropy

A

∆Stotal = ∆Ssystem + ∆Ssurroundings >0

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Gibbs free energy

A

∆G = ∆H - T∆S

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Probability of number of particles in a system

A

P (N, NL) = N! / (N - NL)! x 0.5N

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

spontaneous reaction with free energy

A

∆Gtotal = ∆Gproducts - ∆Greactants <0

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

Van’t Hoff isotherm

A

∆G0 = - RT ln K

K = e(∆G^0 / RT)

19
Q

∆G

A

∆G = - nfe

20
Q

the two versions of the Nernst equation

A

E= Eø - (RT/ nF) ln Q (Q= [red]/[ox])

E= Eø + (RT/nF) ln Q (Q= [ox]/[red])

21
Q

equations relating pH and H+

A

PH= -log10[H+]

H+= 10-pH

22
Q

Nernst equation generalising the pH effect

A

E = (RTV/nF) x (-pH)

23
Q

Rate of collision

A

πr2VR[A][B]

24
Q

collision theory law and constant

A

Rate= K [A][B]

K= πr2VRe(-Ea/ RT)

25
The differential law for zero, first and second order reactions
Zero: rate = K first: rate = K[A] second: rate= K[A]2
26
The integrated rate equation for zero, first and second order reactions
Zero: [A]t = [A]0 - kt first: [A]t = [A]0 e-kt second: [A]t = [A]0 / 1 + kt [A]0
27
First order half life
t1/2 = ln 2 / k
28
Arrhenius equation (both versions)
K= Ae(-Ea /RT) K= Ae(-Ea'/KBT)
29
activation energy
Ea = - gradient x R
30
Counting efficiency
counting efficiency = CPM / DPM
31
Partial pressure
PA = XA x P
32
Mole fraction
XA = number of moles of substance A/ total number of moles of all substances
33
Kp
34
Ka
35
relationship between pH and PKa
pH= 10 -PKa PKa= -log10[pH]
36
Kw
Kw = [OH-][H+]
37
energy
E= hu
38
Beer Lambert Law
log10 (I0 / It) = OD= ecl