Exam 2 Flashcards
What are the three concentrations in an equilibrium reaction
Products and both reactants
If K>1 the reaction favors the formation of the
products
If K<1 the reaction favors the
reactants
The concentration is relative to the
standard state concentration
Standard state concentrations (4)
Solute: 1M
Gas: 1 bar
Solid: pure solid
Liquid: pure liquid
If you reverse a reaction, k is equal to _____ for the reverse
1/K
K for the sum of 2 reactions is equal to
the product of their individual equilibrium constants
If K=e^(ΔG0/TR) when are the products favored
When ΔG0<0
Chemical systems tend towards ____ entropy and _____ enthalpy
higher, lower
Enthalpy
<0 = exothermic
>0 = endothermic
exothermic favored
Entropy
<0 l= less disordered
>0 = more disordered
higher disorder favored
Q<K
reaction favors the products
Q=K
Equilibrium
Q>K
reaction favors the reactants
If ΔH<0 a decrease in T causes a decrease in
K
If ΔH>0 an increase in T causes an increase in
K
Why does an increase in heat cause an increase in reactant formation
Because increasing the heat produced is technically increasing the products so the reaction has to shift towards the reactants to balance it out
Solubility product
Ksp
Dissociation constant
Ka and Kb
