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Solved: (a)Use Eq. 18.28 to calculate the specific heat at
Chapter 18, Problem 45E(choose chapter or problem)
(a) Use Eq. 18.28 to calculate the specific heat at constant volume of aluminum in units of \(J / \mathrm{kg} \cdot \mathrm{K}\). Consult the periodic table in Appendix D. (b) Compare the answer in part (a) with the value given in Table 17.3. Try to explain any disagreement between these two values.
Equation Transcription:
Text Transcription:
J/kg.K
Questions & Answers
QUESTION:
(a) Use Eq. 18.28 to calculate the specific heat at constant volume of aluminum in units of \(J / \mathrm{kg} \cdot \mathrm{K}\). Consult the periodic table in Appendix D. (b) Compare the answer in part (a) with the value given in Table 17.3. Try to explain any disagreement between these two values.
Equation Transcription:
Text Transcription:
J/kg.K
ANSWER:
Solution 45E
Step 1
The molar specific heat at constant volume is given by
Here is the ideal gas constant and is given by
Hence the molar specific heat of ideal solid is
Now the atomic mass of aluminium is 26.98. Hence the molar mass of aluminium is
Hence the specific heat of aluminium at constant volume is given by