Unit 9

Question 1

what equals a high entropy

Answer 1

a more dispersment of moleucles

Question 2

what does more molecules mean in terms of entropy

Answer 2

a higher entropy

Question 3

State the levels of entropy in order for the state of matter

Answer 3

Solid
Liquid
Gas (most entropy)

Question 4

What are the three degrees of freedom in molecules

Answer 4

translational, vibrational, and rotational

Question 5

what happens when there are more degrees of freedom

Answer 5

a higher entropy

Question 6

what is a solution and its abbreviation

Answer 6

a molecule that is mixed with water and known as aq

Question 7

what is the variable and unit for entropy

Answer 7

S, J/K

Question 8

what does thermodynamically favorable mean in terms of G

Answer 8

G IS LESS THAN ONE

Question 9

define thermodynamically favored

Answer 9

the reaction just happens on it’s own with no energy required

Question 10

When a -H and a +S are evaluated what is the sign of the G value and is it thermodynamically favored

Answer 10

The G is always negative, favored

Question 11

When a -H and a -S are evaluated what is the G value and is it thermodynamically favored

Answer 11

The G vallue is undetermined. It depends on the temperature. It will be favored if there is a low temperature

Question 12

When a +H and a +S are evaluated what is the G value and is it thermodynamically favored

Answer 12

The G value is undetermined. It depends on the temperature. it will be favored if there is a high temperature

Question 13

When a +H and a -S are evaluated what is the G value and is it thermodynamically favored

Answer 13

Not every thermodynamically favored

Question 14

What is kinetic control

Answer 14

It means that the reaction is favorable but they have extremely high activation energies.

Question 15

answer:

when G<0 k is
when G=0 k is
when G>0 K is

Answer 15

K is >1
K=1
K <1

Question 16

what is coupling

Answer 16

a reaction, originally unfavorable, that occurs in multiple steps to produce a thermodynamically favorable reaction

Question 17

what occurs at the anode

Answer 17

oxidation

Question 18

what occurs at the cathode

Answer 18

reduction

Question 19

what is oxidixzation

Answer 19

when an electrons are lost so it’s charge goes up

Question 20

what is reduction

Answer 20

when an electron is gained so it’s charge goes down

Question 21

oxidization number rule for group 1 metsls

Answer 21

always +1

Question 22

oxidixation number rule for group 2 metals

Answer 22

alway 2+

Question 23

oxidixation number rule for oxygen

Answer 23

-2

Question 24

oxidixation number rule for hydrogen

Answer 24

+1 except -1 with a metal

Question 25

oxidixation number rule for flourine

Answer 25

-1

Question 26

oxidixation number rule for chlorine

Answer 26

-1 except with O or Fwh

Question 27

what oxidizztion number does a solid have

Answer 27

0

Question 28

if an element has a higher standard reduction potential what does that mean

Answer 28

it is more likely to be reduced

Question 29

if an element has a lower standard reduction potential what does that mean

Answer 29

it is jmore likely to be oxidized

Question 30

if voltage is psitive what is g

Answer 30

negative

Question 31

which side of a galvanic cell is the cathode

Answer 31

the one the gains mass, where electrons are being flowed to, where it is being reduced

Question 32

which half reox reaction flips if you need to flip one

Answer 32

the more negative one

Question 33

to find the E of a cell what do the electrons have to e , if you multiply what happens to the voltage

Answer 33

canceled out voltage stays the same

Question 34

what two things causes an increase in voltage q

Answer 34

increase in cathode molarity decrease in anode molarity

Question 35

what two things causes a decrease in voltage

Answer 35

decrease in cathode molarity increase in anode molarity

Question 36

when you add reactions together how do you find the new k

Answer 36

multiply