Table 2.3 Standard enthalpies of fusion and vaporization at the transition temperature, AusH/(kJ mol-¹)Tb/KVaporizationT₁/KElementsAgArBr₂Cl₂F₂H₂HeHg1₂N₂Na0₂XeKTf/K123483.81265.9172.153.613.963.5234.3386.863.15371.054.36161336.4Inorganic compoundsCCIA250.3Fusion11.301.18810.576.410.260.1170.0212.29215.520.7192.6010.4442.302.352.47Data: AIP; s denotes sublimation.243687.29332.4239.185.020.384.22629.7458.477.35115690.181651031349.9250.66.50629.4520.413.160.9160.08459.3041.805.58698.016.82012.680.2330.00CO₂CS₂H₂OH₂SH₂SO4NH3C₂H6CHOrganic compoundsCHACCIC6H14C10H8CH,OH217.0161.2273.15C₂H,OH187.6283.5195.490.68250.389.85278.61178354175.2158.7Fusion8.334.396.0082.3772.565.6520.9412.52.8610.5913.0818.803.164.60Tb/K194.6319.4373.15212.8239.7111.7350184.6353.2342.1490.9337.2352Vaporization25.23 s26.7440.65644.016 at 298 K18.6723.358.1830.014.730.828.8551.5135.2737.99 at 298 K43.5 [P1] Calculate the amount of energy associated with transforming 1.5 kg of carbon disulfide from 50 degree Celsius to -115 degreeCelsius. Use the following heat capacities:Jmol KJmol KJCCp (solid)p (liquid)= 42=78CP (gas)=57-mol KUsing Table 2.3 of Appendix 1 - Physical Chemistry by Atkins, how much heat is associated with the entire process?-665682 J-864700 J-250906 J-250707 JAdditional contentDrag and drop files here or click to add text.

Given amount of CS2 = 1.5 kg The initial temperature = 500C = T1 = 273 + 50 = 323 KThe final…

[P1] Calculate the amount of energy associated with transforming 1.5 kg of carbon disulfide from 50 degree Celsius to -115 degree Celsius. Use the following heat capacities: J mol K J C p(solid) C p (liquid) C p (gas) = 42 A =78 <=57 mol K J mol K Using Table 2.3 of Appendix 1 - Physical Chemistry by Atkins, how much heat is associated with the entire process? -665682 J B) -864700J C) -250906 J -250707 J

[P1] Calculate the amount of energy associated with transforming 1.5 kg of carbon disulfide from 50 degree Celsius to -115 degree Celsius. Use the following heat capacities: J mol K J C p(solid) C p (liquid) C p (gas) = 42 A =78 <=57 mol K J mol K Using Table 2.3 of Appendix 1 - Physical Chemistry by Atkins, how much heat is associated with the entire process? -665682 J B) -864700J C) -250906 J -250707 J

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Concept explainers

Thermochemistry

Thermochemistry can be considered as a branch of thermodynamics that deals with the connections between warmth, work, and various types of energy, formed because of different synthetic and actual cycles. Thermochemistry describes the energy changes that occur as a result of reactions or chemical changes in a substance.

Exergonic Reaction

The term exergonic is derived from the Greek word in which ‘ergon’ means work and exergonic means ‘work outside’. Exergonic reactions releases work energy. Exergonic reactions are different from exothermic reactions, the one that releases only heat energy during the course of the reaction. So, exothermic reaction is one type of exergonic reaction. Exergonic reaction releases work energy in different forms like heat, light or sound. For example, a glow stick releases light making that an exergonic reaction and not an exothermic reaction since no heat is released. Even endothermic reactions at very high temperature are exergonic.

Question

Table 2.3 Standard enthalpies of fusion and vaporization at the transition temperature, AusH/(kJ mol-¹)
Tb/K
Vaporization
T₁/K
Elements
Ag
Ar
Br₂
Cl₂
F₂
H₂
He
Hg
1₂
N₂
Na
0₂
Xe
K
Tf/K
1234
83.81
265.9
172.1
53.6
13.96
3.5
234.3
386.8
63.15
371.0
54.36
161
336.4
Inorganic compounds
CCIA
250.3
Fusion
11.30
1.188
10.57
6.41
0.26
0.117
0.021
2.292
15.52
0.719
2.601
0.444
2.30
2.35
2.47
Data: AIP; s denotes sublimation.
2436
87.29
332.4
239.1
85.0
20.38
4.22
629.7
458.4
77.35
1156
90.18
165
1031
349.9
250.6
6.506
29.45
20.41
3.16
0.916
0.084
59.30
41.80
5.586
98.01
6.820
12.6
80.23
30.00
CO₂
CS₂
H₂O
H₂S
H₂SO4
NH3
C₂H6
CH
Organic compounds
CHA
CCI
C6H14
C10H8
CH,OH
217.0
161.2
273.15
C₂H,OH
187.6
283.5
195.4
90.68
250.3
89.85
278.61
178
354
175.2
158.7
Fusion
8.33
4.39
6.008
2.377
2.56
5.652
0.941
2.5
2.86
10.59
13.08
18.80
3.16
4.60
Tb/K
194.6
319.4
373.15
212.8
239.7
111.7
350
184.6
353.2
342.1
490.9
337.2
352
Vaporization
25.23 s
26.74
40.656
44.016 at 298 K
18.67
23.35
8.18
30.0
14.7
30.8
28.85
51.51
35.27
37.99 at 298 K
43.5

[P1] Calculate the amount of energy associated with transforming 1.5 kg of carbon disulfide from 50 degree Celsius to -115 degree
Celsius. Use the following heat capacities:
J
mol K
J
mol K
J
C
C
p (solid)
p (liquid)
= 42
=78
C
P (gas)=57-
mol K
Using Table 2.3 of Appendix 1 - Physical Chemistry by Atkins, how much heat is associated with the entire process?
-665682 J
-864700 J
-250906 J
-250707 J
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