Chemistry by OpenStax (2015-05-04)
1st Edition
ISBN:9781938168390
Author:Klaus Theopold, Richard H Langley, Paul Flowers, William R. Robinson, Mark Blaser
Publisher:Klaus Theopold, Richard H Langley, Paul Flowers, William R. Robinson, Mark Blaser
Chapter5: Thermochemistry
Section: Chapter Questions
Problem 20E: A 45-g aluminum spoon (specific heat 0.88 J/g C) at 24 C is placed in 180 mL (180 g) of coffee at 85...
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Question
![A 201. -g aluminum engine part at an initial temperature of 10.98 °C absorbs 61.2 kJ of heat. What is the final temperature of the part? Be sure your answer
has the correct number of significant figures.
Note: Reference the Phase change properties of pure substances table for additional information.
°C
x10
X](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F87643561-f7f8-47c3-82b0-7735ae0706bf%2F3b4ef2bd-4a5e-4545-9e32-a41b8ea3dd5c%2F3w7r7rq_processed.png&w=3840&q=75)
Transcribed Image Text:A 201. -g aluminum engine part at an initial temperature of 10.98 °C absorbs 61.2 kJ of heat. What is the final temperature of the part? Be sure your answer
has the correct number of significant figures.
Note: Reference the Phase change properties of pure substances table for additional information.
°C
x10
X
![substance
Al(s)
Al³+ (aq)
AICI 3 (s)
Al2O3(s)
Al(OH)3(s)
As(s; gray)
AsH3(g)
H3ASO4(s)
AsO4³- (aq)
Ba(s)
Ba(g)
Ba²+(g)
Ba²+ (aq)
AH₁° (kJ/mol) AGfº (kJ/mol) S° (J/mol-K)
Aluminum
0
-531.0
-704.2
-1675.7
-647.3
Arsenic
0
66.4
-906.3
-888.1
Barium
0
180.0
1648.1
-537.6
0
-485.0
-628.8
-1582.3
-1147.25
0
68.9
-766.0
-648.4
0
146.0
-560.8
28.3
-321.7
109.3
50.9
35.1
222.8
184.0
-162.8
62.5
170.2
‒‒‒
9.6](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F87643561-f7f8-47c3-82b0-7735ae0706bf%2F3b4ef2bd-4a5e-4545-9e32-a41b8ea3dd5c%2Ftvc1r89_processed.png&w=3840&q=75)
Transcribed Image Text:substance
Al(s)
Al³+ (aq)
AICI 3 (s)
Al2O3(s)
Al(OH)3(s)
As(s; gray)
AsH3(g)
H3ASO4(s)
AsO4³- (aq)
Ba(s)
Ba(g)
Ba²+(g)
Ba²+ (aq)
AH₁° (kJ/mol) AGfº (kJ/mol) S° (J/mol-K)
Aluminum
0
-531.0
-704.2
-1675.7
-647.3
Arsenic
0
66.4
-906.3
-888.1
Barium
0
180.0
1648.1
-537.6
0
-485.0
-628.8
-1582.3
-1147.25
0
68.9
-766.0
-648.4
0
146.0
-560.8
28.3
-321.7
109.3
50.9
35.1
222.8
184.0
-162.8
62.5
170.2
‒‒‒
9.6
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