Last Chem Test!!

What is dynamic equilibrium?

• 🔹rate forward reaction = rate reverse reaction

  🔹 no observable changes

  🔹 both directions of reaction are occuring

  🔹rates are equal but amounts are not

• 🔹rate forward reaction ≠ rate reverse reaction

  🔹 observable changes

  🔹 one direction of reaction is occuring

  🔹rates are not equal but amounts are

• 🔹rate forward reaction = rate reverse reaction

  🔹 observable changes

  🔹 both directions of reaction are occuring

  🔹both rates and amounts are unequal

• 🔹rate forward reaction ≠ rate reverse reaction

  🔹 no observable changes

  🔹 one direction of reaction is occuring

  🔹rates are equal but amounts are not

How is K determined?

Set up the equation for K for this reaction:

2 N₂O₅ ⇌ 4 NO₂ + O₂

If the reaction is reversed, how is K affected?

• šIf you reverse the equation, invert K

• šIf you reverse the equation, double K

• šIf you reverse the equation, keep K the same

• šIf you reverse the equation, triple K

If you double the reaction, how is K affected?

• šIf you double the equation, invert K

• šIf you double the equation, double K

• šIf you double the equation, keep K the same

• šIf you double the equation, triple K

If K is above 1000, how does the reaction proceed?

• the reaction will be right favored, meaning products dominate

• the reaction will be left favored, meaning reactants dominate

• the reaction will be equal in rate, meaning neither products or reactants dominate

If K is less than 0.001, how does the reaction proceed?

• the reaction will be right favored, meaning products dominate

• the reaction will be left favored, meaning reactants dominate

• the reaction will be equal in rate, meaning neither products or reactants dominate

If K is almost 1, how does the reaction proceed?

• the reaction will be right favored, meaning products dominate

• the reaction will be left favored, meaning reactants dominate

• the reaction will be equal in rate, meaning neither products or reactants dominate

Only grams (g) are included in equilibrium equations.

That means no (aq), (s), or (l)

• True

• False

What is an ICE Table? How is it used?

• An ICE table is used to calculate equilibrium concentrations. "ICE" stands for Initial, Change, and Equilibrium.

• An ICE table is used to calculate moles. "ICE" stands for Initial, Change, and Equilibrium.

• An ICE table is used to calculate equilibrium concentrations. "ICE" stands for ice, Change, and Equivalence point.

• An ICE table is used to calculate equilibrium concentrations. "ICE" stands for Isotope, Chart, and Equality.