Chemistry for Engineering Students
4th Edition
ISBN:9781337398909
Author:Lawrence S. Brown, Tom Holme
Publisher:Lawrence S. Brown, Tom Holme
Chapter9: Energy And Chemistry
Section: Chapter Questions
Problem 9.104PAE: 9.104 An engineer is using sodium metal as a cooling agent in a design because it has useful thermal...
Related questions
Question
3
![Record the type of metal. (Enter "1" for aluminum; enter "2" for copper.)
1
Record the following masses to the nearest 0.01 g
Table 5
Metal
26.98
4.0
Calorimeter
28.54
Calorimeter & Water 49 127.99
4.0✓
4.0✓
Water
Mass (g)
4.0
4.099.45
Enter the following temperatures to the nearest 0.1°C.
Table 6
S
✔
✓
Temperature (°C)
Calorimeter & Water
4.0 19.5
4.0
99.6
Boiling Water Bath
Maximum Temperature Reached 4.0 23.9
✔
✓
Results
Calculate the specific heat and the molar heat capacity, C, of your metal, using Eq. 10d, in units of J/g °C and J/mol °C respectively. (Enter your answers to three significant figures.)
AH₁ + AH calorimeter +AH₂ = m₁0water(Tfinal - T₁) + Ccalorimeter(Tfinal T₁) + m₂c₂(final - ₂) = 0
J/g °C
J/mol. °C
Compare the molar heat capacity to the Dulong and Petit value of 3R (R = 8.314 J/K mol). (Calculate the percent error. Enter your answer to three significant figures.)
4.0
%](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F31702fc5-0793-46cc-9911-6b5555baf359%2F9161b5ab-fe43-4ae5-af5b-afa9a13b5493%2Fvc1hhw_processed.jpeg&w=3840&q=75)
Transcribed Image Text:Record the type of metal. (Enter "1" for aluminum; enter "2" for copper.)
1
Record the following masses to the nearest 0.01 g
Table 5
Metal
26.98
4.0
Calorimeter
28.54
Calorimeter & Water 49 127.99
4.0✓
4.0✓
Water
Mass (g)
4.0
4.099.45
Enter the following temperatures to the nearest 0.1°C.
Table 6
S
✔
✓
Temperature (°C)
Calorimeter & Water
4.0 19.5
4.0
99.6
Boiling Water Bath
Maximum Temperature Reached 4.0 23.9
✔
✓
Results
Calculate the specific heat and the molar heat capacity, C, of your metal, using Eq. 10d, in units of J/g °C and J/mol °C respectively. (Enter your answers to three significant figures.)
AH₁ + AH calorimeter +AH₂ = m₁0water(Tfinal - T₁) + Ccalorimeter(Tfinal T₁) + m₂c₂(final - ₂) = 0
J/g °C
J/mol. °C
Compare the molar heat capacity to the Dulong and Petit value of 3R (R = 8.314 J/K mol). (Calculate the percent error. Enter your answer to three significant figures.)
4.0
%
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