Equilibria Flashcards
reversible reaction at equilibrium
forward and back at same rates
con of products and reactants is constant
dynamic equilibrium
closed system
f+b same rate
le chatelier’s principle
external con changes
equilibrium shifts to counteract change
increase in temp
endo reaction- absorb heat
increase in pressure
side w/ fewer molecules to release build up of pressure
increase in conc
increase reactant conc favours products
catalyst
no effect on rate
speeds up when equilibrium is reached
industrial processes
low temp increases yield, but slows reaction
high pressure increases yield, but is expensive
Kc
indicates position of equilibrium for a reaction at a certain temp
only affected by temp, not conc or catalyst
only works w/ homogenous reactions
Kc calculation
Kc= ([C]c [D]d) / ( [A]a [B]b)
