Is it Energy over Mass or Mass over Energy?

yes

Explanation:

its mass over energy

molecules are free to separate from each other and will take on the shape of the container. molecules move completely at random and high speeds. they vibrate in a fixed position and do not move around much. molecules expand to the edge of their container.

0.93xc=0.93x3x10^8m/s

2.54cm is 1 inch

360seconds i 1 hr