A sample of solid biphenyl weighing 0.5260 g was ignited in a bomb calorimeter initially at 25.0°C, producing a temperature rise of 1.910 K. Determine the internal energy (∆U) of combustion. To properly determine the internal energy of combustion for the solid biphenyl, the calorimeter was first calibrated. a)A 0.7750 g sample of benzoic acid (C₆H₅COOH, MW 122.1 g/mol)) was ignited under identical conditions and produced a temperature rise of 1.940 K. For benzoic acid, the internal energy combustion at constant volume, ∆U, is known to be –3226 kJ/mol. Calculate the calorimeter constant, in kJ/K. b)using the caloremeter constant, determine triangleU, in KJ/mol, for the conbustion of solid biphenyl ((C6H5)2, MW 154.21 g/mol)
A sample of solid biphenyl weighing 0.5260 g was ignited in a bomb calorimeter initially at 25.0°C, producing a temperature rise of 1.910 K. Determine the internal energy (∆U) of combustion. To properly determine the internal energy of combustion for the solid biphenyl, the calorimeter was first calibrated. a)A 0.7750 g sample of benzoic acid (C₆H₅COOH, MW 122.1 g/mol)) was ignited under identical conditions and produced a temperature rise of 1.940 K. For benzoic acid, the internal energy combustion at constant volume, ∆U, is known to be –3226 kJ/mol. Calculate the calorimeter constant, in kJ/K. b)using the caloremeter constant, determine triangleU, in KJ/mol, for the conbustion of solid biphenyl ((C6H5)2, MW 154.21 g/mol)
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
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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A sample of solid biphenyl weighing 0.5260 g was ignited in a bomb calorimeter initially at 25.0°C, producing a temperature rise of 1.910 K. Determine the internal energy (∆U) of combustion.
To properly determine the internal energy of combustion for the solid biphenyl, the calorimeter was first calibrated.
a)A 0.7750 g sample of benzoic acid (C₆H₅COOH, MW 122.1 g/mol)) was ignited under identical conditions and produced a temperature rise of 1.940 K. For benzoic acid, the internal energy combustion at constant volume, ∆U, is known to be –3226 kJ/mol. Calculate the calorimeter constant, in kJ/K.
b)using the caloremeter constant, determine triangleU, in KJ/mol, for the conbustion of solid biphenyl ((C6H5)2, MW 154.21 g/mol)
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