Chapter 6 Part 2

Question 1

Heat transferred equation

Answer 1

q=specific heat capacity) (mass) (∆T)

Question 2

Heat transfer process

Answer 2

qlost = - (qgained)

Question 3

expansion work

Answer 3

w = - P∆V

Question 4

change in internal energy

Answer 4

∆U = q - P∆V

Question 5

ΔH= “+”

Answer 5

endothermic process, heat imported

Question 6

ΔH= “-“

Answer 6

exothermic process, heat exported

Question 7

∆H ̊

Answer 7

change in enthalpy under standard conditions

Question 8

“new” system under standard conditions

Answer 8

1 bar, 298.15 ̊K, 1 M

Question 9

Standard molar enthalpies of formation

Answer 9

∆H ̊f

Question 10

s to l

Answer 10

melting/fusion, heat of fusion, ∆Hfusion

Question 11

l to s

Answer 11

Freezing/ solidification, energetic measure: -heat of fusion, - ∆Hfusion

Question 12

l to g

Answer 12

vaporization, energetic measure: heat of vaporization, ∆Hvaporization

Question 13

g to l

Answer 13

condensation, energetic measure: -heat of vaporization, - ∆Hvaporization

Question 14

s to g

Answer 14

sublimation, energetic measure: eat of sublimation, ∆Hsublimation

Question 15

g to s

Answer 15

deposition, energetic measure:
- heat of sublimation, - ∆Hsublimation