I cant figure out which is the last part of the problem, solving for Δ? ( Determine the entropy change when 8.50 mol HBr(l)8.50 mol HBr(l) freezes at atmospheric pressure) Consider the data in the table.CompoundHFHCIHBrHIAHus (kJ/mol)4.5771.9912.4062.871Using the data in the table, calculate A.Sus and A.Svap for HBr.A.Sfus =A.Svap =12.93Melting point (°C)-83.11-114.3-86.96-50.9193.54Boiling point (°C) AHap (kJ/mol)19.54-84.9-67.0-35.38Determine the entropy change when 8.50 mol HBr(1) freezes at atmospheric pressure.25.1817.5319.2721.16J/(K-mol)J/(K-mol)

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Determine the entropy change when 8.50 mol HBr(1) freezes at atmospheric pressure.

Fundamentals Of Analytical Chemistry

9th Edition

ISBN:9781285640686

Author:Skoog

Publisher:Skoog

Chapter26: Molecular Absorption Spectrometry

Section: Chapter Questions

Problem 26.4QAP

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Question

I cant figure out which is the last part of the problem, solving for Δ? ( Determine the entropy change when 8.50 mol HBr(l)8.50 mol HBr(l) freezes at atmospheric pressure)

Consider the data in the table.
Compound
HF
HCI
HBr
HI
AHus (kJ/mol)
4.577
1.991
2.406
2.871
Using the data in the table, calculate A.Sus and A.Svap for HBr.
A.Sfus =
A.Svap =
12.93
Melting point (°C)
-83.11
-114.3
-86.96
-50.91
93.54
Boiling point (°C) AHap (kJ/mol)
19.54
-84.9
-67.0
-35.38
Determine the entropy change when 8.50 mol HBr(1) freezes at atmospheric pressure.
25.18
17.53
19.27
21.16
J/(K-mol)
J/(K-mol)

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