Wet limestone is used to scrub SO2 gas from the exhaust gases of power plants. One possible reaction gives hydrated calcium sulfite and another hydrated calcium sulfate. The balanced equations for the two reactions are: CaCO3 (s) + SO2 (g) + ½ H2O (l) ⇌ CaSO3∙½H2O (s) + CO2 (g)   CaCO3 (s) + SO2 (g) + ½ H2O (l) + ½ O2 (g) ⇌ CaSO4∙½H2O (s) + CO2 (g)  Which of the two reactions will be more product favoured?

Chemistry: Principles and Practice
3rd Edition
ISBN:9780534420123
Author:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer
Publisher:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer
Chapter14: Chemical Equilibrium
Section: Chapter Questions
Problem 14.62QE: Write the expression for the equilibrium constant and calculate the partial pressure of CO2(g),...
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Wet limestone is used to scrub SO2 gas from the exhaust gases of power
plants. One possible reaction gives hydrated calcium sulfite and another
hydrated calcium sulfate.
The balanced equations for the two reactions are:


CaCO3 (s) + SO2 (g) + ½ H2O (l) ⇌ CaSO3∙½H2O (s) + CO2 (g)  


CaCO3 (s) + SO2 (g) + ½ H2O (l) + ½ O2 (g) ⇌ CaSO4∙½H2O (s) + CO2 (g) 

Which of the two reactions will be more product favoured?

 

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