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Chemistry 2 > Chapter 13: Equilibrium > Flashcards

Chapter 13: Equilibrium Flashcards

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1
Q

what is the equilibrium constant formula?

A

products/reactants with the mols squaring each value

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2
Q

what happens to the equation if Q > K

A

the reaction will go backwards

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3
Q

what happens to the equation if Q < K

A

the reaction will go forwards

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4
Q

what happens to the equation if the reactant is increased?

A

the reaction will go forward

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5
Q

what happens to the equation if the reactant is decreased?

A

the reaction will go backwards

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6
Q

what happens to the equation if the product is increased?

A

the reaction will go backwards

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7
Q

what happens to the equation if the product is decreased?

A

the reaction will go forward

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8
Q

what effect does a solid have on equillibrium?

A

no effect

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9
Q

does a catalyst have an effect on equillibrium?

A

no, but it does speed up the rate the system will reach equillibrium

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10
Q

what happens when you increase the temperature in an endothermic reaction?

A

the system will shift forward

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11
Q

what happens when you decrease the temperature in an endothermic reaction?

A

the system will shift backwards

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12
Q

what happens when you increase the temperature in an exothermic reaction?

A

the system will shift backwards

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13
Q

what happens when you decrease the temperature in an exothermic reation?

A

the system will shift forward

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14
Q

what is the only thing that will effect K?

A

temperature

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15
Q

what happens when you increase the pressure (decrease the volume) in a system?

A

the system will shift to the side with less mols of gas

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16
Q

what happens when you decrease the pressure (increase the volume) in a system?

A

the system will shift to the side with more mols of gas

17
Q

what does a negative H indicate?

A

the system is exothermic

18
Q

what does a positive H indicate?

A

the system is endothermic

19
Q

if there is an equal amount of mols on each side of the system, what happens to pressure?

A

the pressure no longer has an effect on the equation

20
Q

what happens if K is less than 1?

A

the system is favoring the reactants side

21
Q

when is Kc and Kp equal?

A

in the formula (on the periodic table) Kp = Kc(RT)^n, n needs to be 0 to cancel out RT. that would mean the reactants gas mols would have to equal the products gas mols

22
Q

when reactants are added, what happens to Q?

A

Q decreases

23
Q

when products are added, what happens to Q?

A

Q increases

Chemistry 2 (6 decks)

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