newtonâs second law says that when an unbalanced force is applied to a mass (object), it causes it to

i'm pretty sure its b i might be wrong though!

> 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.