Calculate AS,º for NH3(g).AS, =JK-1Use data in the table below:Standard Entropies of Some Typical Substances at 298.15 KS°(J mol-' K-1)S°S°Substance(J mol-1 K-1)Substance(J mol-' K-1)SubstanceAg(s)42.55CaO(s)40N2(g)191.5AGCI(s)96.2Ca(OH),(3)76.1NH;(g)192.5Al(s)28.3CaSO,(s)107NH,CI()94.6Al,O3(;)CASO4- H,O(s)NO(g)NO2(g)51.0131210.6C(6) (graphite)5.69CaSO4 2H20(s)194.0240.5CO(g)CO;(g)Ch(g)N,0(g)N,O4(g)197.9223.0220.0213.6Fe(s)27304CHĄ(g)186.2Na(s)Fe,O3(s)H;(g)90.051.0CH;CI(g)234.2130.6Na,CO3(s)136CH;OH(/)126.8H,O(g)188.7NaHCO3(;)102CO(NH,),()104.6H,O(!)69.96NaCI(s)72.38CO(NH,),(aq)173.8HCI(g)186.7NaOH(s)64.18C;H2(g)C,H¾(g)C,H(g)C3H18(1)200.8HNO3(1)155.6NazSO4(s)149.4219.8H,SO4(1)157O,(g)205.0229.5HC,H;O,(1)160PbO(s)67.8Hg(1)Hg(g)466.976.1S()31.9C,H,OH(/)161175SO2(g)248.5Ca(s)41.4K(s)64.18SO3(g)256.2CACO3(s)CaCl,(s)92.9KCI()82.59114K,SOɖ()176

To calculate ∆S°f for NH3 (g) , we would first write a reaction for formation of NH3 (g) . Then…

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Calculate AS,º for NH3(g). AS:º = i JK-1

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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Question

Calculate AS,º for NH3(g).
AS, =
JK-1
Use data in the table below:
Standard Entropies of Some Typical Substances at 298.15 K
S°
(J mol-' K-1)
S°
S°
Substance
(J mol-1 K-1)
Substance
(J mol-' K-1)
Substance
Ag(s)
42.55
CaO(s)
40
N2(g)
191.5
AGCI(s)
96.2
Ca(OH),(3)
76.1
NH;(g)
192.5
Al(s)
28.3
CaSO,(s)
107
NH,CI()
94.6
Al,O3(;)
CASO4- H,O(s)
NO(g)
NO2(g)
51.0
131
210.6
C(6) (graphite)
5.69
CaSO4 2H20(s)
194.0
240.5
CO(g)
CO;(g)
Ch(g)
N,0(g)
N,O4(g)
197.9
223.0
220.0
213.6
Fe(s)
27
304
CHĄ(g)
186.2
Na(s)
Fe,O3(s)
H;(g)
90.0
51.0
CH;CI(g)
234.2
130.6
Na,CO3(s)
136
CH;OH(/)
126.8
H,O(g)
188.7
NaHCO3(;)
102
CO(NH,),()
104.6
H,O(!)
69.96
NaCI(s)
72.38
CO(NH,),(aq)
173.8
HCI(g)
186.7
NaOH(s)
64.18
C;H2(g)
C,H¾(g)
C,H(g)
C3H18(1)
200.8
HNO3(1)
155.6
NazSO4(s)
149.4
219.8
H,SO4(1)
157
O,(g)
205.0
229.5
HC,H;O,(1)
160
PbO(s)
67.8
Hg(1)
Hg(g)
466.9
76.1
S()
31.9
C,H,OH(/)
161
175
SO2(g)
248.5
Ca(s)
41.4
K(s)
64.18
SO3(g)
256.2
CACO3(s)
CaCl,(s)
92.9
KCI()
82.59
114
K,SOɖ()
176

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