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Ch.13

Chem 2

QuestionAnswer
When a reaction is at equilibrium, the forward and reverse reactions occur at the same rate
In the following gas phase reaction, what is the effect of adding more NO2 to the starting reaction mixture? 2NO2 ⇌ N2O4 It would increase the final quantity of products
For the following equilibrium reaction, which cause and effect are correctly matched? CO(g) + 2 H2 (g) ⇌ CH3OH(g) + heat remove H2, shift left
In any chemical reaction, the rate of the reaction can be increased by increasing the concentrations of the reactant
The equilibrium constant for the production of carbon dioxide from carbon monoxide and oxygen is Kc = 2 × 1011. This means that the reaction mixture at equilibrium is likely to consist of mostly products
Which of the following equilibrium constants indicates the reaction that gives the smallest amount of product? Kc = 5 × 10-10
The value of the equilibrium constant for the combination of nitrogen and oxygen to make NO is 2 × 10-9. What does this tell you about the concentrations of materials in the equilibrium mixture? The concentration of reactants exceeds the concentration of products
In the following gas phase reaction, Kc is much less than 1. At equilibrium, which of the following statements is true? Cl2+ CO ⇌ COCl2 The concentration of reactant is much greater than the concentration of products
Created by: aarell82
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