Equilibrium Flashcards
What is dynamic equilibrium
In a reverse reaction, the rate of the forward reaction is equal to the rate of the reverse reaction
What is the concentration of reactants and products at dynamic equilibrium
constant
What are the 3 factors that change the position of equilibrium
Temperature
Concentration
Pressure (ONLY AFFECTS GASSES)
If products increase where will equilibrium shift?
left
If reactants increase, where will equilibrium shift?
right
What effect does DECREASING TEMPERATURE have on equilibrium
favours EXOTHERMIC
What effect does INCREASING TEMPERATURE have on equilibrium
favours ENDOTHERMIC
What effect does DECREASING CONCENTRATION OF REACTANTS have on equilibrium
forms LESS PRODUCT (decomposes to reactants)
- shifts left
What effect does INCREASING CONCENTRATION OF REACTANTS have on equilibrium
forms MORE PRODUCTS
- shifts right
What effect does DECREASING PRESSURE have on equilibrium
favours side with MOST MOLES OF GAS
What effect does INCREASING PRESSURE have on equilibrium
Favours side with LEAST MOLES OF GAS
What does catalyst do to equilibrium
NO EFFECT although causes reaction to REACH EQUILIBRIUM QUICKER
-Increases the rate of forwards and reverse reaction
What are concordant results
Results that are within 0.2cm3 of one another
What are examples of indicator?
starch
phenolphalein
permanganate
What are titrations used for
find unknown concentrations of substances from substances with known concentrations
