kemicknlolMath kemicknlolMath

28-12-2016
Chemistry

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Calorimetric studies show that the reaction is exothermic. 2NO2(g) N2O4(g) + 14.1 kcal. Based on this information, which one--if any--of the following additional changes would increase the molar concentration at equilibrium of N2O4(g)?

decrease the pressure

increase the temperature

decrease the concentration of NO2(g)

stir the reaction mixture

none of the above

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pkmnmushy pkmnmushy

31-12-2016

In order for you to get the answer, please have in mind the following situation: To increase the molar concentration of N2O4(g), 2NO2(g) should also increase for equilibrium to occur. Now, this equation is exothermic. By Le Chatelier's principle, equilibrium constant and reaction constants also come into play in terms of increasing or decreasing the temperature. After that I know you can find the answer.

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