The standard free energy change for the reaction is given as: Cr,03 (s) + 3H2 (g) = 2Cr (s) + 3H,0 (g) AG° = 97,650 –28.6 T cals/mole A solid solution of metal M and Cr is being heated to 1223 °C at 1 atm pressure. Calculate the maximum partial pressure of water vapor in otherwise pure hydrogen that is permissible without oxidizing the Cr. Assume that Cr has a higher affinity for oxygen than metal M.

The standard free energy change for the reaction is given as: Cr,03 (s) + 3H2 (g) = 2Cr (s) + 3H,0 (g) AG° = 97,650 –28.6 T cals/mole A solid solution of metal M and Cr is being heated to 1223 °C at 1 atm pressure. Calculate the maximum partial pressure of water vapor in otherwise pure hydrogen that is permissible without oxidizing the Cr. Assume that Cr has a higher affinity for oxygen than metal M.

Chemistry: The Molecular Science

5th Edition

ISBN:9781285199047

Author:John W. Moore, Conrad L. Stanitski

Publisher:John W. Moore, Conrad L. Stanitski

Chapter17: Electrochemistry And Its Applications

Section: Chapter Questions

Problem 38QRT

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