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Atkins P2.7 The molar heat capacity of ethane is represented in the temperature range 298 K to 400 K by the empirical expression Cp /(3/molK) = 14.73 + 0.1272 (T/K). The corresponding expressions for C(s) and H,(g) are given below. Calculate the standard enthalpy of formation of ethane at 350 K from its value at 298 K (AH (298 K) = - 84.7 KJ/mol). Temperature variation of molar heat capacities, C / (1/molK) = a + bT + c/T? b/(10° K) 4.77 |c/(10° K') a C (s) Н. (о) 16.86 -8.54 27.28 3.26 0.50

Atkins P2.7 The molar heat capacity of ethane is represented in the temperature range 298 K to 400 K by the empirical expression Cp /(3/molK) = 14.73 + 0.1272 (T/K). The corresponding expressions for C(s) and H,(g) are given below. Calculate the standard enthalpy of formation of ethane at 350 K from its value at 298 K (AH (298 K) = - 84.7 KJ/mol). Temperature variation of molar heat capacities, C / (1/molK) = a + bT + c/T? b/(10° K) 4.77 |c/(10° K') a C (s) Н. (о) 16.86 -8.54 27.28 3.26 0.50

Chemistry
Chemistry
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ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
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Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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Atkins P2.7 The molar heat capacity of ethane is represented in the temperature range 298 K to 400 K by the empirical expression Cm /(3/molK) = 14.73 + 0.1272 (T/K). The corresponding expressions for C(s) and H,(g) are given below. Calculate the standard enthalpy of formation of ethane at 350 K from its value at 298 K (AH (298 K) = - 84.7 k]/mol). Temperature variation of molar heat capacities, Cm / (1/molK) = a + bT + c/T? b/(10 K) |c/ (10° K') a C (s) Н. (9) 16.86 4.77 -8.54 27.28 3.26 0.50
Transcribed Image Text:Atkins P2.7 The molar heat capacity of ethane is represented in the temperature range 298 K to 400 K by the empirical expression Cm /(3/molK) = 14.73 + 0.1272 (T/K). The corresponding expressions for C(s) and H,(g) are given below. Calculate the standard enthalpy of formation of ethane at 350 K from its value at 298 K (AH (298 K) = - 84.7 k]/mol). Temperature variation of molar heat capacities, Cm / (1/molK) = a + bT + c/T? b/(10 K) |c/ (10° K') a C (s) Н. (9) 16.86 4.77 -8.54 27.28 3.26 0.50
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