Sign conventions Flashcards
1
Q
Q
A
heat
2
Q
W
A
work
3
Q
Delta E
A
change in internal energy
4
Q
+Q
A
system gains thermal energy
5
Q
-Q
A
System loses thermal energy
6
Q
+W
A
Work done ON system
7
Q
-W
A
System DOES the work.
8
Q
+E
A
Energy flows into the system
9
Q
-E
A
Energy flows out of the system
