equilbrium Flashcards
what is homogenous equilibrium
contains equilibrium species that all have the same state
what is heterogenous equilibrium
contains equilibrium species that have different states
what is mole fraction
the mole fraction of gas is the proportion of the gas by volume to the total volume of gases in a gas mixture
what is the mole fraction of gas A in a gas mixture
number of moles of Gas A/ Total number of moles in gas mixture
what is partial pressure of a gas
partial pressure of a gas is the contribution that the gas makes towards the total pressure
what is the partial pressure of A in a gas mixture
mole fraction of A x total pressure
what does K=1 indicate
indicates an equilibrium halfway between reactants and products
what does k=100 indicate
indicates and equilibrium in favour of products
what does k = 0.01 indicate
indicates an equilibrium in favour of reactants
do equilibrium constants change?
they only change if temperature changes
what happens to equilibrium constant ,k, if forward reaction is exothermic
the equilibrium constant decreases with increasing temperature. Raising temperature decreases equilibrium yield of products
what happens to equilibrium constant if forward reaction is endothermic
equilibrium constant increases with increasing temperature. Raising the temperature increases yield of products
