Quiz 3 Cards (Exam 2) Flashcards
What is it called when the rates of forward and reverse reactions are equal?
Dynamic Equilibrium
What is the letter that represents the reaction quotient?
Q
What does K equal?
Q at equilibrium
For heterogeneous mixtures, what do you exclude in the Kc and Kp expressions?
Solids and liquids
Which direction will an equation go if you add more reactants?
It shifts to the right/favors products
What happens to an equation if you add more products/which direction will it go in?
It will shift to the left/favors reactants
What happens to reactants if the temperature/heat increases?
The reactants will increase
Which direction will an equation go if heat is added on the reactant side?
It will shift to the right
What happens to the reactants if the temperature/heat is decreased?
The reactants decrease
Which direction does an equation do when the heat of the reactants decrease?
It shifts to the left
Do reactants equal endothermic or exothermic?
Endothermic
Do products equal endothermic or exothermic?
Exothermic
What happens when you increase the pressure of a reaction?
The equation shifts in the direction of LESS moles
What happens when you DECREASE the pressure of an equation?
It shifts in the direction of MORE moles
What are the two exceptions for the pressure aspect of equation direction shifts?
- Same numbers of moles of gas on each side (not going to change equilibrium*
Adding an inert/noble gas (not going to change equilibrium)
Does a catalyst change the equilibrium constant (K)?
It does NOT change the equilibrium constant (K)
Does a catalyst help equilibrium be achieved more quickly?
Yes
What is the equation for finding Kp?
Write it down
Write it down
What is the equation for finding Kc?
Write it down
Write it down
What is the equation for finding K prime when the equation is reversed (when K is given)?
1 divided by K
What is the equation for finding K prime when the equation is reversed and multiplied by 3 (when K is given)?
1 divided by K cubed
