Chapter 11

Question 1

C and H together are always what IMF?

Answer 1

London

Question 2

Heating Curve for water:

Q1=

Answer 2

q1 = m x Csice x Delta t

Question 3

Heating Curve for water:

Q2=

Answer 3

q2 = m x delta Hfus

Question 4

Heating Curve for water:

Q3=

Answer 4

q3 = m x Csliquid x Delta t

Question 5

Heating Curve for water:

Q4=

Answer 5

q4 = m x Delta Hvap

Question 6

Heating Curve for water:

Q5=

Answer 6

q5 = m x Csgas x Delta t

Question 7

Cs is

Answer 7

Specific heat in J/(g)(c)

Question 8

m for heating curve is

Answer 8

mass in grams

Question 9

relationship between IMF and Temp…

Answer 9

1. As temp DECREASES, imf INCREASES

2. As temo INCREASES, imf DECREASES

Question 10

All molecules have this IMF

Answer 10

London forces

Question 11

An instantaneous dipole or temporary dipole is created is called

Answer 11

London Force

Question 12

___ electron cloud, ____ Zeffect, ____IMF

Answer 12

increases, decreases, increases

Question 13

Relationship between molar mass and boiling point…

Answer 13

^ Molar Mass, ^ Boiling Point

Question 14

Relationship between Surface Area and Energy needed to get into vapor phase

Answer 14

^ Surface Area, ^ amount of energy needed to get into vapor phase

Question 15

This IMF exists in all polar molecules

Answer 15

Dipole-Dipole

Question 16

The relationship between molar mass and boiling point is only true for which IMF

Answer 16

London Forces

Question 17

Typical Energy Range for Dipole-Dipole

Answer 17

5-25 kj/mol

Question 18

Typical Energy range for London forces

Answer 18

0.05-40kj/mol

Question 19

Hydrogen bonds directly to which small electronegitive atoms?

Answer 19

F, O, N

H(FON)

Question 20

Typical Energy range for hydrogen forces

Answer 20

10-40jk/mol

Question 21

IMF that forms from a ionic and polar compound

Answer 21

Ion-Diople

Question 22

typical energy range for Ion-Dipole forces

Answer 22

40-600kj/mol

Question 23

Surface tension is…

Answer 23

the resistance of liquid to spread out

Question 24

Relationship between surface area and IMF

Answer 24

1. as surface tension v , IMF v

2. as surface tension ^, IMF ^

Question 25

Viscosity is...

Answer 25

measurement of a substances resistance to flow

Question 26

Relationship between Viscosity and IMF

Answer 26

viscosity ^, IMF ^

Question 27

Relationship between Viscosity and Molecular weight

Answer 27

viscosity ^ , molecular weight ^

Question 28

Relationship between Viscosity and the length of the molecule

Answer 28

viscosity ^ as the length of a molecule ^

Question 29

Capillary action is...

Answer 29

ability of liquid to flow against gravity

Question 30

Cohesive forces..

Answer 30

Attraction of molecules in the liquid | C > A

Question 31

Adhesive Forces...

Answer 31

Attraction of molecules and the surface of tube | A > C

Question 32

Relationship between vaporization rate and Temp

Answer 32

^ vaporization rate, ^ temp

Question 33

Relationship between vaporization rate and surface area

Answer 33

^ V.R, ^ S.A

Question 34

Relationship between vaporization rate and IMF

Answer 34

v V.R, ^ IMF

Question 35

Clausis-claypyron equation: 2 point

Answer 35

``` ln(P2/P1) = (-delta Hvap/R)(1/T2 - 1/T1) R= gas constant = 8.314 Pvap= vapor pressure T= Temp ```

Question 36

Solid to liquid

Answer 36

Fusion, Delta Hfus (+)

Question 37

liquid to solid

Answer 37

freezing, Delta Hfus (-)

Question 38

liquid to gas

Answer 38

vaporization, delta Hvap (+)

Question 39

gas to liquid

Answer 39

condensation, Delta Hvap (-)

Question 40

solid to gas

Answer 40

Sublimation, Delta Hsub (+)

Question 41

gas to solid

Answer 41

deposition, delta Hsub (-)