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WorksheetsTopic 7 - Review
Total questions: 20
Worksheet time: 10mins
What is Dynamic Equilibrium?
When someone does the whip right after hitting the nay nay
Rates of the forward and reverse reactions are equal. No change in concentrations of the reactants and products. Dynamic.
Rate of the forward reaction if greater than the reverse reaction.
A change in concentration of products and reaction in a motionless reaction.
In what four conditions can equilibrium occur?
Closed system, constant temperature, constant pressure, no change in macroscopic properties
Constant temperature, constant pressure, no change in macroscopic properties, in Reagan high school
Constant pressure, no change in macroscopic properties, when a reaction is happy, closed system
No change in macroscopic properties, if it is wearing air pods, closed system, constant temperature
What is the equilibrium constant?
Describes how far a reaction proceeds at a given temperature
Describes the pressure of a reaction
Tells which direction the reaction will proceed to reach equilibrium
The constant pain of the International Baccalaureate Chemistry Standard Level course
What does it mean when Kc > 1 ?
Equilibrium lies to left - mixture contains a higher concentration of reactants
Equilibrium lies to right - mixture contains a higher concentration of products
Mixture contains an equal concentration of reactants and products
There's a partayyyyyyyy
What does it mean when Kc = 1
Equilibrium lies to right - mixture contains a higher concentration of products
Mixture contains an equal concentration of reactants and products
Equilibrium lies to left - mixture contains a higher concentration of reactants
There's a partayyyyyyy
What does it mean when Kc < 1
Equilibrium lies to left - mixture contains a higher concentration of reactants
Mixture contains an equal concentration of reactants and products
There's a partayyyyyy
Equilibrium lies to right - mixture contains a higher concentration of products
When manipulating Kc, what happens to Kc when reaction coefficients are halved?
Invert the expression 1/Kc
Square the value Kc2
Square root the value: sqr(Kc)
Multiply the two expressions Kc1*Kc2
What is the reaction quotient (Q)?
The reaction that people make when you hit the woah
Rates of the forward and reverse reactions are equal. No change in concentrations of the reactants and products. Dynamic.
Tells which direction the reaction will proceed to reach equilibrium
When none of the products or reactants can escape the system
What does it mean when Q > KC?
It's like dividing by -1, the world explodes
[Products] is greater, reverse rxn favored
Rxn is at equilibrium
[Reactants] is greater, forward rxn favored
What happens when
Q = KC?
[Reactants] is greater, forward rxn favored
[Products] is greater, reverse rxn favored
It's like dividing by -1, the world explodes
Rxn is at equilibrium
What happens when Q < KC?
[Reactants] is greater, forward rxn favored
[Products] is greater, reverse rxn favored
Rxn is at equilibrium
It's like dividing by -1, the world explodes
Le Chatelier’s Principle states....
when a system in equilibrium is bored, it will shift in such a way to minimize or counteract the effect of the disturbance.
when a system in equilibrium is sad, it will lock itself in its room and listen to sad music all day to counteract the effect.
when a system in equilibrium is agitated by a change, it will shift in such a way to minimize or counteract the effect of the disturbance.
when a system in equilibrium is agitated by a change, it will go out and try to find another system
What process is this?
N2 (g) + 3H2 (g) ⇄ 2NH3 (g) ΔH= negative
The Haber process
The Felten process
The Contact process
The Hershey process
What process is this?
2SO2 (g) + O2 (g) ⇄ 2SO3 (g) ΔH= negative
The Haber process
The Contracted process
The Felten process
The Contact process
What stress (change) in equilibrium effects the equilibrium constant (Kc)?
Increase in pressure
Increase in temperature
Adding a catalyst
Decrease in concentration of the reactant
Where will the equilibrium shift if there is a decrease in concentration of CO2 in the reaction below?
CO2(g)+H2O(l) ⇌ H+(aq)+HCO3-(aq)
The equilibrium will shift to the left
The equilibrium will shift to the right
The equilibrium will not shift
The equilibrium will become confused
Where will the equilibrium shift if there is an increase in pressure in the reaction below?
CO2(g)+H2O(l) ⇌ H+(aq)+HCO3-(aq)
The equilibrium will shift to the left
The equilibrium will see no shift
The equilibrium will shift to the right
The equilibrium will become confused and give-up in shifting
Where will the equilibrium shift if there is a catalyst added to the reaction below?
CO2(g)+H2O(l) ⇌ H+(aq)+HCO3-(aq)
The equilibrium will shift to the right then left and take it back now y'all
The equilibrium will see no shift
The equilibrium will shift to the left
The equilibrium will shift to the right
What is a common catalyst for the Haber process?
Hydrogen ions
Sodium hydroxide
Iron oxide
Vanadium Oxide
What is a common catalyst for the contact process?
Iron oxide
Vanadium Oxide
Hydrogen peroxide
Hydroxide ions
