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

Physical Chemistry

2nd Edition

ISBN:9781133958437

Author:Ball, David W. (david Warren), BAER, Tomas

Publisher:Ball, David W. (david Warren), BAER, Tomas

Chapter2: The First Law Of Thermodynamics

Section: Chapter Questions

Problem 2.83E: Benzoic acid, C6H5COOH, is a common standard used in bomb calorimeters, which maintain a constant...

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