Uses of Equilibrium Constants (HSC SSCE Chemistry): Flashcards
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Meaning of large (>10³)
Meaning of large (>10³)
Equilibrium lies right, products strongly favoured
Meaning of small (<10⁻³)
Meaning of small (<10⁻³)
Equilibrium lies left, reactants strongly favoured
Meaning of between 0.1 and 10
Meaning of between 0.1 and 10
Both reactants and products present in significant amounts
Reaction quotient () definition
Reaction quotient () definition
Same form as , calculated at any point in reaction
When
When
System at equilibrium, no net change
Direction when
Direction when
Forward reaction favoured, shifts right to make products
Direction when
Direction when
Reverse reaction favoured, shifts left to make reactants
Two main applications of
Two main applications of
Check if at equilibrium; calculate unknown concentrations
Memory aid for
Memory aid for
Q too low? Forward we go!
Importance of stoichiometry in equilibrium
Importance of stoichiometry in equilibrium
Use balanced equation to relate concentrations of species