Homework Statement
There is a graph PxV. Pressure is obviously constant so it is a strait line and volume is from point A (1) to point B (3.5). You do not need to solve anything but it asks if work is being done on the system or by the system.
Homework Equations
U=Q-W
The Attempt...
Homework Statement
This is more of a concept that I am confused on.
IF there are 2 metals, one on top of the other, and they are attached to each other and attached to a wall, and the only thing different between the two metals is the thermal expansion. When heated will the metal curve...