Use the data from the benzoic acid trial to calculate Chomb. (see below) Use Chomb and data from the sucrose trial to calculate AHxn and AHf for sucrose. Use data from the same bomb that was used for the benzoic acid trial because Chomb is not the same fo each bomb apparatus. Mass of Pellet (g) Initial Mass of Wire (g) Final Mass of Wire (g) Pressure (atm) Initial Temperature (C) Final Temperature (C) Benzoic Acid Sucrose 0.9074 0.0158 0.0078 28 23.11 25.34 1.068 0.0162 0.0089 28 22.94 24.64 AHcomb of Benzoic Acid -26.73 kJ/g or -3226.7 kJ/mol AHcomb of wire -1400 cal/g
Use the data from the benzoic acid trial to calculate Chomb. (see below) Use Chomb and data from the sucrose trial to calculate AHxn and AHf for sucrose. Use data from the same bomb that was used for the benzoic acid trial because Chomb is not the same fo each bomb apparatus. Mass of Pellet (g) Initial Mass of Wire (g) Final Mass of Wire (g) Pressure (atm) Initial Temperature (C) Final Temperature (C) Benzoic Acid Sucrose 0.9074 0.0158 0.0078 28 23.11 25.34 1.068 0.0162 0.0089 28 22.94 24.64 AHcomb of Benzoic Acid -26.73 kJ/g or -3226.7 kJ/mol AHcomb of wire -1400 cal/g
Introduction to Chemical Engineering Thermodynamics
8th Edition
ISBN:9781259696527
Author:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Publisher:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Chapter1: Introduction
Section: Chapter Questions
Problem 1.1P
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Transcribed Image Text:• Use the data from the benzoic acid trial to calculate Chomb. (see below)
• Use Chomb and data from the sucrose trial to calculate AHxn and AHf for sucrose. Use data
from the same bomb that was used for the benzoic acid trial because Cbomb is not the same for
each bomb apparatus.
Mass of Pellet (g)
Initial Mass of Wire (g)
Final Mass of Wire (g)
Pressure (atm)
Initial Temperature (C)
Final Temperature (C)
Benzoic Acid Sucrose
0.9074
0.0158
0.0078
28
23.11
25.34
ChombAT=qbomb
1.068
0.0162
0.0089
AHcomb of Benzoic Acid -26.73 kJ/g or -3226.7 kJ/mol
AHcomb of wire
-1400 cal/g
+
28
22.94
24.64
calorimeter constant, or heat capacity of the bomb, AT is the
qrxnqwire-bomb
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