S_06 Flashcards
(14 cards)
1
Q
Two ways to transfer energy
A
Heat (q) - work (w)
2
Q
If reactants have higher internal energy than products delta Esyst is
A
negative
3
Q
If reactants have lower internal energy than products delta Esyst is
A
Positive
4
Q
First law of thermodynamics
A
energy is conserved
5
Q
delta E = ?
A
delta E = q + w
Or. q - P deltaV
6
Q
Work = ?
A
F x d. Or. -P delta V
Delta V = chnage in volume
P = opposing pressure from the surroundings ( always cnst)
7
Q
q surroundings =
A
C delta T
8
Q
qv =
A
qsys = -qsurr
9
Q
Delta E = qv
A
10
Q
Delta E = delta H -(nf-ni)(RT)
A
11
Q
DeltaS universe =
A
Delta Ssystem + delta Ssurroundings
12
Q
Delta Ssys =
A
+ delta Hsys / T
13
Q
Delta Ssurr =
A
- delta Hsys/T
14
Q
Delta G =
A
Delta H - T delta S
