The equilibrium pressure of hydrogen H2 over solid uranium U and solid uranium hydride UH3 at 500 K is 139 Pa. Calculate the standard Gibbs energy of formation of UH3 (s) in the reaction: U(s) + 3/2 H2 (g) → UH3 (s) at 500 K. Hint: start with writing the equilibrium constant K expressed through activities that include pressure of gas. Examples are in class notes. Then, convert K to the standard Gibbs energy of the pertinent reaction.
The equilibrium pressure of hydrogen H2 over solid uranium U and solid uranium hydride UH3 at 500 K is 139 Pa. Calculate the standard Gibbs energy of formation of UH3 (s) in the reaction: U(s) + 3/2 H2 (g) → UH3 (s) at 500 K. Hint: start with writing the equilibrium constant K expressed through activities that include pressure of gas. Examples are in class notes. Then, convert K to the standard Gibbs energy of the pertinent reaction.
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
Chapter16: Solubility And Precipitation Equilibria
Section: Chapter Questions
Problem 70AP
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The equilibrium pressure of hydrogen H2 over solid uranium U and solid uranium hydride UH3 at 500 K is 139 Pa.
Calculate the standard Gibbs energy of formation of UH3 (s) in the reaction:
U(s) + 3/2 H2 (g) → UH3 (s)
at 500 K.
Hint: start with writing the equilibrium constant K expressed through activities that include pressure of gas. Examples are in class notes.
Then, convert K to the standard Gibbs energy of the pertinent reaction.
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