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AP Chemistry Equilibrium

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Section 1

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Reverse reaction

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Chemistry Science

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Last updated

6 years ago

Date created

Mar 1, 2020

Cards (37)

Section 1

(37 cards)

Reverse reaction

Front

Products to reactants

Back

Kc and Kp have what units?

Front

they both have no units, but Kp is calculated using atm and Kc is calculated using molarity

Back

If the reaction only contains reactants...

Front

Q = 0

Back

Adding a catalyst...

Front

DOES NOT change the concentration

Back

Removing product...

Front

shifts right

Back

Q < K

Front

reaction goes to the right (products)

Back

Adding product...

Front

shifts left

Back

Large equilibrium constant means...

Front

products are favored

Back

Q = K

Front

reaction is at equilibrium

Back

K<1

Front

Reverse reaction is favored

Back

If the reaction is added

Front

multiply Kc

Back

If the reaction is reversed

Front

invert Kc

Back

Adding an inert gas...

Front

DOES NOT change the concentration

Back

Small equilibrium constant means...

Front

reactants are favored

Back

If the reaction only contains products...

Front

Q = infinity

Back

Removing reactant...

Front

shifts left

Back

Increasing volume...

Front

decrease in pressure and shifts toward the side with the more moles

Back

Forward reaction

Front

Reactants to Products

Back

Q > K

Front

reactions goes to the left (reactants)

Back

Le Chateller's Principle

Front

when a chemical system at equilibrium is disturbed, the system shifts in the direction that minimizes the disturbance

Back

At equilibrium....

Front

K = Q

Back

K=1

Front

neither reaction is favored

Back

In an exothermic reaction, increasing temperature means...

Front

adding product, shifts left, value of K decreases because concentration of the products decrease and the concentration of the reactants increase.

Back

Solubility product constant (Ksp)

Front

Measures solubility of a compound

Back

Reaction Quotient

Front

measures the progress of a reaction relative to equilibrium

Back

1 atm

Front

760 mmHg and 760 Torr

Back

How is q calculated?

Front

Same way as Kc

Back

In an endothermic reaction, increasing temperature means...

Front

adding reactant, shifts right, and the value of K increases because the concentration of the products increase and the concentration of the reactants decrease.

Back

Buffer

Front

A solution that minimizes changes in pH when extraneous acids or bases are added to the solution.

Back

K>1

Front

Forward reaction is favored

Back

Solids and liquids are...

Front

completely omitted from calculations

Back

Adding reactant...

Front

shifts right

Back

In an endothermic reaction, decreasing temperature means...

Front

removing reactant, shifts left, value of K decreases because the concentration of the products decrease and the concentration of the reactants increase.

Back

Difference between K and Q

Front

Q depends on what STATE of the reaction and K has a given temperature that has only one value that specifies a relative amount

Back

Decreasing volume...

Front

increase in pressure and shifts toward the side with the least amount of moles

Back

If the reaction is multiplied

Front

raise Kc to the power

Back

In a exothermic reaction, decreasing temperature means...

Front

removing product, shifts right, value of K increases because the concentration of the products increase and the concentration of the reactants decrease.

Back