Answer:
are sure this is a question
The ONLY way to change the volume of a sample of gas is to transfer it to a container with different volume.
Simply changing its temperature or pressure in the same jar won't do it. Any amount of gas always fills whatever container you keep it in.
There are no appropriate units for power on the list you provided
The answer is C. Potential energy is when an object is at rest.
Kinetic is when an object is in motion.
Compare the initial mass to the final mass.
