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LOHS
AP Chem Schrempp 2008
43
Effects of Volume and Pressure Changes
•An increase in pressure (by decreasing the volume) favors the formation of colorless N2O4.
•The instant the pressure increases, the system is not at equilibrium and the concentration of both
gases has increased.
•The system moves to reduce the number moles of gas (i.e. the forward reaction is favored).
Le Châtelier’s Principle
