4 tasks (decision)

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Uploaded: 10.01.2016
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Problem 58
Can I use the reaction Cr2O3 (m) + 3C (T) = 2Sr (m) + 3SO (g) for chromium 1500K? Gibbs energy change determined on the basis of calculating the thermal effect and the change in entropy of the reaction.
Problem 78
How does the equilibrium heterogeneous system C (s) + CO2 (g) ⇄ 2CO (g), ΔHº298 = + 119,8kDzh: a) the addition of CO 2 (g); b) addition of C (t); c) increasing the temperature; d) increasing the pressure; d) introducing the catalyst; e) removal of CO (g)?
Problem 163
Tin welded with silver. Which metals will oxidize under corrosion if the metal vapor in the alkaline medium will fall? Chart corrosion of the cell and specify the direction of motion of the electrons. Write the equation of anodic and cathodic processes, and t

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