Exam 4

Question 1

principal quantum number

Answer 1

has to deal with size, n and total nodes is n-1

n=1 to infinity

Question 2

angular momentum or azimuthal

Answer 2

has to do with shape, energy in multi electron atoms.

l=0 to n-1
planar nodes = l

Question 3

magnetic

Answer 3

orientation

ml goes to -l to + l

Question 4

n is

Answer 4

principal quantum number

Question 5

l

Answer 5

angular momentum or azimuthal

Question 6

ml is

Answer 6

magnetic number

Question 7

ms is

Answer 7

spin

Question 8

when l is 0

Answer 8

orbital is s

Question 9

l is 1

Answer 9

p orbital

Question 10

l is 2

Answer 10

d orbital

Question 11

how many angular/planar nodes

Answer 11

l

Question 12

how many radial nodes

Answer 12

n-l-1

but just n-1 if its in principal quantum num

Question 13

D =

Answer 13

is supposed to be delta symbol - See lecture notes for clarification

Question 14

photon energy is

Answer 14

h times frequency

Question 15

c is

Answer 15

frequency lamda

Question 16

momentum is

Answer 16

h/λ

Question 17

kin energy is

Answer 17

KE = ½ mv2

Question 18

total energy using systems is

Answer 18

E = KEsys + PEsys

Question 19

Q IS

Answer 19

mcdelta t

Question 20

delta e is

Answer 20

∆E = q + w

heat and work

Question 21

∆E and heat

Answer 21

heat and volume

= qV

Question 22

delta h with delta e

Answer 22

∆H = ∆E + P ∆V

pressure

Question 23

∆H= qp

Answer 23

heat and pressure

Question 24

delta h rxn

Answer 24

∆H°rxn = ∆H° products − ∆H° reactants

Question 25

delta h rxn

Answer 25

∆Erxn = BEreactants − BEproducts

Question 26

state functions

Answer 26

energy, enthalpy, temp, vol and press

Question 27

path functions

Answer 27

heat and work

Question 28

enthalpy of formation is

Answer 28

products - reactants

Question 29

bond e

Answer 29

reactants- products

Question 30

same charge, small distance

Answer 30

has high repulsion and high el

Question 31

same charge, greater separation

Answer 31

less repulsion and lower el

Question 32

different charge, small separation

Answer 32

greater attraction and lower el

Question 33

different change, large separation

Answer 33

less attraction and higher el

Question 34

draw the electrostatic potential curve

Answer 34

ha

Question 35

gases move at

Answer 35

different speeds, even same species

Question 36

pressure volume work

Answer 36

NEGATIVE pdelta v = w

Question 37

as you decrease the distance between two particles, what happens to the absolute value of the magnitude of the el?

Answer 37

it increases

Question 38

nodes vs density

Answer 38

nodes have low amplitude and low density

Question 39

radial probability distribution curve peaks

Answer 39

show the n number

Question 40

radial probability distribution curve dips

Answer 40

show the nodes

Question 41

Photoelectric effect

Answer 41

when you hit a material with radiation, electrons will come off it

Question 42

bond energy is

Answer 42

always positive

Question 43

go look at the lecture questions

Answer 43

HA