Gen Chem Class 3

Question 1

Decreasing Force of IMF (S,L,G states)

Answer 1

Decreasing strength from solid to gas

Question 2

Deposition

Answer 2

Gas to liquid

Question 3

Calorimetry

Answer 3

The science to measuring changes to determine heat transfer. Performed with a calorimeter (insulate)

Question 4

q =n (change in H)

Answer 4

Change in phase equation
q = heat
Change in H - entholopy
n = number of moles

Question 5

q = mc (change in T)

Answer 5

Be mindful of units. Then add q1 + q2

Question 6

Change in phase diagram

Answer 6

Increasing heating and flat equals phase change

Question 7

p = m/v

Answer 7

P is density
M is mass
V is volume
Temp is inversely proportional

Question 8

Vapor Pressure

Answer 8

Force exerted by gas particles that vaporize fro, a solid to liquid

Question 9

Boiling point

Answer 9

Vap pressure = atm pressure

Density p is directly related

IMF inversely related

Question 10

Melting point/ freezing point

Answer 10

External p directly proportional
(Water is an exception)

IMF directly proportional

Question 11

Van Hoff Factor

Answer 11

The number or parties produced in solution per mole of substance

Question 12

Solvation

Answer 12

Interaction o f solvent with the solute

Question 13

Supersaturated

Answer 13

Concentration> Solubility

Question 14

When a system absorbs or releases heat what are the two things that can happen?

Answer 14

Transition state or change in temp but not both at the same time.