When 5.84 mols of 02 gas is heated at a constant pressure of 118. kPa, the temperature increases from 257. K to 292. K.Given the molar heat capacity of molecular oxygen at constant pressure is 29.4 J K1 mole -1, calculate the change of internal energy.AU =kJHint: Because H = U + PV, it follows that AH = AU + A(PV) or for and ideal gas AH = AU + A(nRT).

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Answered: ( to 292. K. nge of internal energy.

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( to 292. K. nge of internal energy.

Principles of Modern Chemistry

8th Edition

ISBN:9781305079113

Author:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler

Publisher:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler

Chapter12: Thermodynamic Processes And Thermochemistry

Section: Chapter Questions

Problem 66AP

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Question

When 5.84 mols of 02 gas is heated at a constant pressure of 118. kPa, the temperature increases from 257. K to 292. K.
Given the molar heat capacity of molecular oxygen at constant pressure is 29.4 J K1 mole -1, calculate the change of internal energy.
AU =
kJ
Hint: Because H = U + PV, it follows that AH = AU + A(PV) or for and ideal gas AH = AU + A(nRT).

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