Pressure
Posted: Mon Jan 14, 2019 10:30 pm
by inlovewithchemistry
Can someone explain the significance of pressure when discussing equilibrium constants? For example, how would adding an inert gas to a system at equilibrium change anything?
Re: Pressure [ENDORSED]
Posted: Mon Jan 14, 2019 10:40 pm
by Shally Li 2C
Adding an inert gas has no effect on the equilibrium concentration so it does not change the constant.
Re: Pressure
Posted: Mon Jan 14, 2019 10:46 pm
by Kate_Santoso_4F
If the pressure of a reaction vessel is increased by adding an inert gas, then moles of reactant, product, and volume are constant. Therefore, there is no change in the reactant and product concentration and no effect on the reaction. Remember that an inert gas does not undergo chemical reactions under a set of given conditions. Therefore, if the moles of reactant, product, and volume remain constant then the composition of the reaction is the same and the K remains constant.