a) Given the data table: AH°† (kJ / mol) S°m (J / K mol) 5.7 C(s, graphite) CS2(g) S(g) 115.3 237.8 277.2 167.8

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Chapter18: Thermodynamics And Equilibrium
Section: Chapter Questions
Problem 18.90QP
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Please give answer all questions.
a) Given the data table:
AH° (kJ / mol)
S°m (J/K mol)
C(s, graphite)
CS2(9).
S(g)
S2(9).
S8(s)
5.7
115.3
237.8
277.2
167.8
128.6
228.167
32.1
Assuming that carbon has no residual entropy, what is the average heat capacity
of graphite? Assume that graphite has 0 entropy at 1 K
b)
Given:
AHvap(Br2) = 15.4 kJ/mol
ASvap(Br2) = 46.5 J/(K mol)
What is the boiling point of Br2()?
%3D
Transcribed Image Text:a) Given the data table: AH° (kJ / mol) S°m (J/K mol) C(s, graphite) CS2(9). S(g) S2(9). S8(s) 5.7 115.3 237.8 277.2 167.8 128.6 228.167 32.1 Assuming that carbon has no residual entropy, what is the average heat capacity of graphite? Assume that graphite has 0 entropy at 1 K b) Given: AHvap(Br2) = 15.4 kJ/mol ASvap(Br2) = 46.5 J/(K mol) What is the boiling point of Br2()? %3D
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