What is potential energy?
the energy of change
the energy of position or composition
the energy of mass or volume
the energy of motion

increased stability in the completion of fluorine's outer shell.

> b takes place in the gas phase in an isothermal tubular reactor. the feed is one mole of a per one mole of c, an inert. the entering temperature and pressure are 427°c and 10 atm, respectively. the gas constant r = 0.08206 atm · l/mol · k.