A process does work if, in principle, it can be harnessed to raise a weight somewhere in the surroundings. An example of doing work is the expansion of a gas that pushes out a piston: the motion of the piston can in principle be used to raise a weight.
A process does work if, in principle, it can be harnessedto raise a weight somewhere in the surroundings. An example of doing work isthe expansion of a gas that pushes out a piston: the motion of the piston can in principlebe used to raise a weight.