THERMODYNAMICS Flashcards
1
Q
exothermic
A
release (-)
2
Q
endothermic
A
absorb (+)
3
Q
H rxn <0
A
exothermic
4
Q
H rxn > 0
A
endothermic
5
Q
q > 0
A
heat is absorbed by the system (endo)
6
Q
q < 0
A
heat is absorbed by the surroundings (exo)
7
Q
w > 0
A
if the surrounding do work on the system
8
Q
w < 0
A
if the system do work on the surroundings
9
Q
energy enters the system
A
+
10
Q
energy leaves the system
A
-
11
Q
work is done on the system
A
+
12
Q
work is done by the system; work is done on the surroundings
A
-
13
Q
delta S > 0
A
disorder increases; favors spontaneity
14
Q
delta S < 0
A
disorder decreases; disfavors spontaneity
15
Q
A
