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Changes in pressure affect which types of reactions?
Changes in pressure typically affect reactions involving gases, where the number of gas molecules changes during the reaction. In reactions with balanced stoichiometry, changing pressure affects equilibrium position, while in reactions involving gases with different stoichiometry, pressure can affect reaction rates.
What can effect equilibrium shifts?
Changes in concentration, pressure, or temperature can all affect the equilibrium position of a reaction. Adding or removing reactants or products, changing the volume of the container, or altering the temperature can lead to shifts in equilibrium to favor the formation of products or reactants. Additionally, catalysts do not affect the position of equilibrium but can speed up the attainment of equilibrium.
What stressors will affect the value for Keq according to Le Chatelier's principle?
Changes in temperature, pressure, and concentration of reactants or products can affect the equilibrium constant (Keq) value according to Le Chatelier's principle. Increasing temperature typically decreases Keq for an endothermic reaction and increases it for an exothermic reaction, while changes in pressure can affect Keq for reactions involving gases. Changes in concentration can shift the equilibrium in a way that either increases or decreases the Keq value.
What 2 reaction conditions affect the position of equilibrium?
temperature, pressure (in the case of gases), concentration
How would a change in pressure affect a gaseous system in equilibrium?
An increase in pressure will shift the equilibrium towards the side with fewer moles of gas, while a decrease in pressure will shift it towards the side with more moles of gas. This is based on Le Chatelier's principle, which states that a system in equilibrium will adjust to counteract the change imposed on it.
