While investigating the relationship between voltage, current, and resistance, students connected different batteries to different circuits and recorded measurements of battery voltage and a current flowing through the battery. The students' results are shown on the graph.

it's filtration, but this is an assumption so my apologies if i got this

> 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.

it is b that is the answer.