An Introduction to Thermodynamics phần 3 docx
An Introduction to Thermodynamics phần 3 docx
... a
correction for changes of concentrations during the reaction.
(5)
T
q
dS
rev
=
KJ/g 22.1
K 15.2 73
J/g 6 .33 3
⋅===∆
T
Q
S
rev
KJ/g 22.1
K 15.2 73
(ice) J/g 6 .33 3
⋅−=
−
=∆
thermostat
S
7/10/07 2- 37
(T) ... atoms), one way of
23
storing energy in the ball is to start it rolling. Another very large group of ways of storing energy
in the ball is to let some of the atoms begin t...
An Introduction to Thermodynamics phần 5 docx
... obtained from equation 36 by replacing V by nRT
2 2
/P and V by nRT /P .)
2 1 1 1
25. Show that equations 36 and 37 for an adiabatic, reversible expansion of an ideal gas can be
put into the following ...
VT
H
dT
dP
∆
∆
=
C0.14 K
33 4
10 x 1.013x 10 x 0.09 035 x 2 73 x 19
J/m 1
Pa 1
Pa 10 x 0 13. 1
atm 1
x
g/m10 x 9. 035 K x 2 73
J/g 33 4-
T
atm 19
o
56-
35 38-
−=
−
=∆
=
∆
∆
=
∆...
An Introduction to Thermodynamics phần 6 docx
... , and n and the integrated equation
1 2 3
divided by N to give the same result.
1
7/10/07 3- 72
and integration from pure solvent (N = N = 0) to dilute solution (N and N very small) gives
2 3 ... important, for
example, in the storage of gasoline, which is a mixture of many
hydrocarbons. The storage tanks must be vented to the air and
consequently water vapor can condense in the ta...
An Introduction to Thermodynamics phần 1 pdf
... far, thermodynamics has
been shown to be correct.
Energy
The first step in understanding thermodynamics, and making it serve your purposes, is to
learn how to evaluate changes in energy in any ... to the
7/10/07 Intro- 8
analysis of equilibrium thermodynamics. We must, however, be sensitive to the differences
between what is transferred and what is stored.
The description of ene...
An Introduction to Thermodynamics phần 2 potx
... )
+−+=+=
∫∫
1
3
12
3
2
2
,
,
3
3
1
3
3
1
3
2
1
22
11
xxxxdxxydx
x
x
yx
yx
7/10/07 1- 25
volume of 1.000 132 cm under 1 atm pressure does not determine whether the temperature is 0 C
3 o
or 8.1 C, ... constant, it may be removed from the integral.
ext
W = - P I dV = - P ∆V (9a)
ext ext
3
5
1
m 0.0 530
Pa
10
x
0 13
.
1
K 32 3K x J/mol .31 48 x mol 2
=
⋅
=V
3...
An Introduction to Thermodynamics phần 4 ppsx
... -16.4
3
C graphite 0 0 aq -36 2.5 - 236 .5
CF g - 933 .6( 639 .9) 66.2 NH Cl c -31 4.4 -202.9
4 4
CCl lq - 139 .3 -68.6 N O g 81.6 1 03. 2
4 2
CO g -110.5 - 137 .2 NO g 91 .3 87.6
CO g -39 3.5 -39 4.4 NO g 33 .2 ... g 52.4 68.4
2 3 2 4
Fe O c -1118.4 -1015.4 C H g -84.0 -32 .0
3 4 2 6
HBr g -36 .3 - 53. 4 CH OH g -201.0 -162 .3
3
aq -121.6 -104.0 lq - 239 .2 -166.6
HF g -2 7...
An Introduction to Thermodynamics phần 7 pot
... vapor pressure of Ni was observed to be 7.50 x 10 torr and at 1142 C it was
o -8 o
14 .33 x 10 torr. What is the heat of vaporization of nickel in this range?
-8
3. Is the fugacity of ice increased ... equilibrium
constant”) is rigorously constant!
7/10/07 4- 90
Equilibrium Constants
At equilibrium, under constant temperature and pressure, the free-energy change is zero and
equation 6 beco...
An Introduction to Thermodynamics phần 8 pdf
... concentrations, of the reactants and products.
Not only ∆G and equilibrium constants can be determined electrochemically, but also ∆H and
∆S. From equation 21 and equation 30 of Chapter 2,
and therefore, ... decomposition of methanol, at this temperature and
o
constant volume, if the initial pressure of pure methanol is 5 atm.
7. Water and solid sulfur can react to form SO and H S accordin...
An Introduction to Thermodynamics phần 9 ppsx
... can be totally converted to thermal energy (or
“heat”) but thermal energy cannot be totally converted to work (i.e., mechanical energy) in a
cyclic process. Thermodynamics provides an understanding ... 2 13. 78 NaOH c 64.5
2
CS g 237 .8 O g 205.15
2 2
Cl g 2 23. 1 O g 238 .9
2 3
F g 202.8 P red 22.8
2
H g 130 .68 white 41.1
2
HBr g 198.70 PH g 210.2
3
HCl g 186.90 S rhombic 3...
An Introduction to Thermodynamics phần 10 potx
... geometrically by an area. The
second method may be called an antiderivative.
Area. In section A .3 we looked at the equation for an ideal gas to find how one quantity
changes as another quantity changes. ... tortoise has moved 1 m.
Each time Achilles runs the distance to where the tortoise had been, the tortoise will have moved
to a new location, ahead of Achilles. Will Achilles...
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