equilibrium

Question 1

dynamic

Answer 1

constant, active movement

Question 2

static

Answer 2

without motion, fixed

Question 3

constant

Answer 3

ultimately not changing visually

Question 4

rate

Answer 4

typically a ratio in referrence to time

Question 5

example of rate

Answer 5

speed- distance over time

Question 6

properties of a system in chemical equilibrium

Answer 6

1. closed system
2. macroscope properties are constant
3. equal rate of forward and reverse

Question 7

dynamic equilibrium

Answer 7

dynamic- reactions still happening
equilibrium- rate of forward reaction is equal to rate of the reverse reaction

Question 8

macroscopic properties

Answer 8

color
pressure
concentration

Question 9

is dynamic equilibrium 50/50

Answer 9

not neccesarily

Question 10

strong acid willing to give up

Answer 10

hydrogen

Question 11

quantitative reactions

Answer 11

start out as reactants, go till completion, end up as products
-doesnt apply to all reactions

Question 12

equilibrium constants

Answer 12

must consider reaction and product concentrations at the time equilibrium is reached
-experimental

Question 13

Keq or Kc

Answer 13

product of molar concentrations of the product for the chemical reaction

Question 14

rules of Kc

Answer 14

-concentrations always mol/L
-product concentrations are numerator
-reactant concentrations are placed in the denominator
-powers determinded by balanced equation

Question 15

what types of states concentrations are included in Kc equations

Answer 15

-only gases and substances in solutions

Question 16

Kc > 1

Answer 16

more inclined to create product

Question 17

Kc < 1

Answer 17

reactant favoured

Question 18

factors that affect equilibrium

Answer 18

1. diff chemical reactions of different Kc
2. temperature

Question 19

Kc is ____ specific

Answer 19

temperature

Question 20

factors that DO NOT affect equilibrium

Answer 20

1. adding/removing the reactant or product (just reestablishes equilibrium)
2. catalysts (reaches equilibrium faster)
3. change in pressure (reestablishes)

Question 21

using a graph to determine Kc what value do we use

Answer 21

equilibrium concentrations

Question 22

la chateliers principal

Answer 22

if a stress is applied to a system at equilibrium then the system will chabnge to relieve that stress

Question 23

energy (la chateliers principal)

Answer 23

energy is same as adding or removing chemical

Question 24

endothermic energy addition

Answer 24

energy is a reactant
-adding energy pushes the reaction to product/right

Question 25

exothermic energy addition

Answer 25

energy is a product
-adding energy, reaction shifts left (reactants)

Question 26

pressure in la chateliers principal

Answer 26

in an equilibrium system involving gases
-relieve system by making fewer molecules if inc of pressure

Question 27

temperature changes in graph

Answer 27

each identity will change, reactants the same, products the same

Question 28

pressure changes in graph

Answer 28

spike up of concentration due to smaller volume (pressure inc)
-system tries to relieve inc of pressure by making fewer molecules

Question 29

concentration changes in graph

Answer 29

-only one spike, everything else adjusts slowly
“use up the extra”

Question 30

graph if everything spikes

Answer 30

-pressure

Question 31

graph if one thing spikes

Answer 31

-concentration

Question 32

graph if there is change across all

Answer 32

-energy