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v PartA Which of the designs violate(s) the first law of thermodynamics? Give the letter(s) of the design(s) in alphabetical order, without commas or spaces (e.g., ACD). P View Available Hint(s) CF Previous Answers v Correct
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The value of trangle H for the decompisition..
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Using thermodynamics and the identities provided prove the statement and show that it is true
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V
Part A
Calculate AS for the balanced chemical equation:
AS
Tall
Submit
ΙΠΤΑΣΦ 4
Request Answer
C?
J/K
2H₂S(R) +30₂(g) → 2H₂O(g) +250₂ (8)
Substance and state S J/(K-mol)
188.8
205
H₂O(g)
0₂(g)
H₂S(g)
SO₂(g)
205.7
248.1
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es
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Review
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O Tell me
三 三
AaBbCcDdEe
AaBbCcDdEe
AaBbCcDdEe
AaB
Normal
Body Text
No Spacing
Table Paragr...
Не
5, and improvements, choose Check for Updates.
Answer the following questions.
CO(g) +2 H2(g) CH3OH(1) AH° =-128.1 kJ
S°
AH
(kJ mol-')
-110.5
-238.6
AG
(kJ mol-1)
(J mol- K-)
CO(g)
CH3OH(1)
-137.3
-166.2
+197.9
+126.8
The data in the table above were determined at 25°C.
(a) Calculate AG° for the reaction above at 25°C.
(b) Calculate Keg for the reaction above at 25°C.
(c) Calculate AS for the reaction above at 25°C.
(d) In the table above, there are no data for H2. What are the values of AHƐ, AGƐ, and of the absolute
entropy, S°, for H2 at 25°C?
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! ( plz answer was with explanation)
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Reaction #1
Co()
+ 2H2(g) → CH:OH()
AS° = -332 J/K
CH.(g) + 0:(g)
AS° = +162 J/K
Reaction #2
CH:OH(!) –
AH',
AG;
s°
Substance
(kJ mor)
(kJ mot')
(JK' mor')
Co(g)
-110.5
197.674
-238.7
-166.4
126.8
CH:OH(f)
CH(g)
-74.8
186.2
NOTE: You should be able to work this problem without using any additional
tabulated data.
(a) Calculate AH for reaction #1.
(b) Calculate AGf for CO(g).
(c) Calculate S° for O2(g).
(d) At what temperatures is reaction #1 spontaneous?
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Fundamental Equation
Maxwell Relation
A
dA = -pdV – SdT
se
vớp
dU = TdS – pdV
%3D
as,
G, - ),
dG = Vdp – SdT
ƏT
D
dH = TdS + Vdp
Which fundamental equation of thermodynamics is matched with a wrong Maxwell
relations?
O none of the above
О в
Ос
O A
B.
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can you answer question nine correct, please
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i need the answer quickly
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Give detailed Solution with explanation needed..don't give Handwritten answer..don't use Ai for answering this
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Program is informing me that my answer of-458992.14 is not to the correct amount of significant figures.
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it
UCSC Video Quiz Lecture 9
N+
284
-149 kJ/mol
not enough information given
-186 kJ/mol
canvas.ucsc.edu
Homework 2 - CHEM 1C - 02 S...
You find a table of thermodynamic data with no column headir
and so you can't tell which numbers are for AH of formation an
which numbers are for AG of formation. For a particular
compound you see two numbers, -149 kJ/mol and -186 kJ/mol.
What is the value of AG of formation?
b Success Confirmation of Questi...
H₂O
CO₂ 0₂
Desmos | Graphing Calculator
Products N.
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question 4
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Please help! Thank you!
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B Pearson's MyLab & Mastering
E MasteringChemistry: HW7_ Th x
->
->
A session.masteringchemistry.com/myct/itemView?assignmentProblemID=158221141&offset=next
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For the reaction
2H₂O(1)→ 2H₂(g) + O2(g)
AG 461 kJ and
AH = 572 kJ at 339 K and 1 atm.
This reaction is
B favored under standard conditions at 339 K.
The entropy change for the reaction of 1.81 moles of H₂O(1) at this temperature would be
Submit Answer
Retry Entire Group 2 more group attempts remaining
J/K.
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59. Which of the following which is/are true about the internal energy, E?
(i)
E = q + w
(ii) E = q - w
(iii) Euniverse
(iv) Esys = 0
(v) Euniverse
Esys + Esurr
%3D
Select one:
а. (iv)
b. (i) and (ii)
С. (1)
d. (ii) and (iii)
е. (i), (iї), (iv)
f. (i) and (v)
g. (iii)
h. none of these
i. (i), (iii), (v)
j. (ii)
k. (v)
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When most elastomeric polymers (e.g., a rubber band)are stretched, the molecules become more ordered, asillustrated here:
Suppose you stretch a rubber band. (a) Do you expect theentropy of the system to increase or decrease? (b) If therubber band were stretched isothermally, would heat needto be absorbed or emitted to maintain constant temperature?(c) Try this experiment: Stretch a rubber band andwait a moment. Then place the stretched rubber band onyour upper lip, and let it return suddenly to its unstretchedstate (remember to keep holding on!). What do you observe?Are your observations consistent with your answerto part (b)?
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Part B
Calculate AG at 298 K if the partial pressures of NO2 and N₂O4 are 0.40 atm and 1.60 atm,
respectively.
Express the free energy in kilojoules to two decimal places.
AG = -5.70
Submit
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P Pearson
?
kJ
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Give typed explanation not a single word hand written otherwise leave it
Correct answer from answer key: 345
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