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Calculate the standard Gibbs energy of formation of H,O(g) at 25 °C.

Calculate the standard Gibbs energy of formation of H,O(g) at 25 °C.

Biochemistry
Biochemistry
9th Edition
ISBN:9781319114671
Author:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.
Publisher:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.
Chapter1: Biochemistry: An Evolving Science
Section: Chapter Questions
Problem 1P
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Calculate the standard Gibbs energy of formation of H,O(g) at 25 °C. Method Write the chemical equation for the formation reaction, and then the expression for the standard Gibbs energy of formation in terms of the Gibbs energy of each molecule; then express those Gibbs energies in terms of the molecular partition function of each species. Ignore molec- ular vibration as it is unlikely to be excited at 25 °C. Take numerical values from the Resource section together with the following rotational constants of H,O: 27.877, 14.512, and 9.285 cm-1, Take for the atomization energy of H,O the value -237 kJ mol-'.
Transcribed Image Text:Calculate the standard Gibbs energy of formation of H,O(g) at 25 °C. Method Write the chemical equation for the formation reaction, and then the expression for the standard Gibbs energy of formation in terms of the Gibbs energy of each molecule; then express those Gibbs energies in terms of the molecular partition function of each species. Ignore molec- ular vibration as it is unlikely to be excited at 25 °C. Take numerical values from the Resource section together with the following rotational constants of H,O: 27.877, 14.512, and 9.285 cm-1, Take for the atomization energy of H,O the value -237 kJ mol-'.
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