Chapter 14. Equilibrium Suroviec Spring 2014. I. Equilibrium. So far we have mostly considered just forward reactions aA + bB cC + dD. But all reactions can move in either direction. A. State of equilibrium. Rate of equilibrium. Equilibrium is dynamic. B. Positions of equilibrium.
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aA + bB cC + dD
2. Small value of K means reactant favored
Given the K of this reaction to be 170, when the conditions are changed what is the Q?
Given the new Q, what is the direction of the reaction to re-establish equilibrium?
PCl5 (g) PCl3 (g) + Cl2 (g)
K is 1.2 at 25oC. If you place 0.300 M PCl5 (g) in a flask what are the equilibrium concentrations of PCl3 (g), PCl3 (g) and Cl2 (g)?
H2 (g) + Br2(g) 2HBr (g)
N2(g) + 3H2 (g) 2NH3 (g)
2N2(g) + 6H2 (g) 4NH3 (g)
When the stoichiometric coefficients in a balanced reaction are changed by a factor of n:
Calculation Knet for the following reaction:
Fe (s) + H2O (g) FeO (s) + H2 (g)
Given the following information:
H2O (g) + CO (g) H2 (g) + CO2 (g) K1 = 1.6
FeO (s) + CO (g) Fe (g) + CO2 (g) K2 = 0.67
2SO2 (g) + O2 (g) 2SO3(g) ΔHrxn = -197 kJ