Equilibrium Flashcards

(45 cards)

1
Q

Reversible reaction symbol

A

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3
Q

What does hydrated copper sulfate look like?

A

Blue crystals

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4
Q

What does anhydrous copper sulfate look like?

A

White powder

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5
Q

What does anhydrous mean?

A

No water

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6
Q

Hydrated copper sulfate formula

A

CuSO4.5H2O

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7
Q

Dynamic equilibrium definition

A

Forwards and backward reactions in a closed system are simultaneous

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8
Q

Closed system definition

A

Nothing can get in your out

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9
Q

What happens to concentration at dynamic equilibrium?

A

They are constant not equal

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10
Q

What is static equilibrium?

A

No movement

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11
Q

What is new dynamic equilibrium?

A

Rate down is the same as rate up but in a new position

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12
Q

What is le Chatelier’s principe?

A

If the conditions of a system at equilibrium are changed, the position of equilibrium moves to oppose the change

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13
Q

What does le Chatelier’s principe do if the system gets hotter?

A

Equilibrium position moves to left in endothermic direction to oppose the increase in temperature + decrease the equilibrium yield of (element)

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14
Q

What does exothermic do to the system?

A

Makes it hotter

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15
Q

What does endothermic reaction make the system?

A

Colder

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16
Q

What happens if the delta h is negative?

A

Forward reaction is exothermic ( gives out energy )

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17
Q

What happens if the delta h is positive?

A

Forward reaction is endothermic

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18
Q

What does more gas particles mean?

A

More pressure

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19
Q

What happens if pressure increase in regards to equilibrium?

A

Equilibrium position moves to the right side with fewer molecules to oppose the increase in pressure + increases equilibrium yield of (element with more molecules)

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20
Q

What happens if concentration increases in regards to equilibrium?

A

Equilibrium position moves to right to oppose increase in concentration + increase equilibrium yield of (element)

21
Q

What are the 2 types of compromise conditions?

A

Haber process

Contact process

22
Q

What is the Haber process?

A

an artificial nitrogen fixation process and is the main industrial procedure for the production of ammonia today

23
Q

What is the Haber process delta h value?

24
Q

Haber process calculation?

A

N2 + 3H2 ⇌ 2NH3

28
Q

What is the contact process?

A

modern industrial method of producing sulfuric acid; it has largely replaced the chamber, or lead-chamber, process

29
What is the contact process delta h value?
- 196 Kjmol -1
30
What are the conditions used in the contact process?
150 kPa 450 degrees V2O5 catalyst
31
Making nitrous oxide calculation?
N2O4 ⇌ 2NO2 | + 55 Kjmol -1
32
What is a reagent?
Substance in a bottle
33
What is a reaction?
Part of the reagent that reacts
34
What is kc?
The equilibrium constant
35
What does the kc show?
How far a reaction will proceed
36
What is kc NOT affected by?
Concentration Pressure Catalyst
37
What is kc affected by?
Temperature
38
What is the equilibrium law?
aA + bB ⇌ cC + dD capitals- products lower case- numbers
39
Equilibrium constant equation
Kc = products / reactants
40
Equilibrium constant equation using letters
Kc= [C]c [D]d / [A]a [B]b
41
How are the units of kc affected?
Depends on exact equilibrium expression | Can be unit less
42
Does adding a catalyst affect equilibrium position?
No but it does speed up reaction
43
What is the units if there is one [] on the bottom?
mol-1dm3
44
What is the units if there is one [] on the top?
moldm-3
45
What are the steps of ice?
Initial moles Change in moles Equilibrium in moles
46
What is the contact process calculation?
2SO2 + O2 ⇌ 2SO3
48
What are the conditions used in the haber process?
450 degrees 20 Mpa (20000 kpa) Iron catalyst Recycle unused reactants
49
What are the haber process values used for?
A compromise between rate + yield
50
What is atmospheric pressure?
100 kPa