As continents come together to form a supercontinent, a. the ocean that jad separated them disappears
b. a giant ocean forms on the outside of the supercontinent
c. mountain ranges rise where continental plates converge
d. all of these

> 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.