In which case is the work done on the system always positive?
ΔΕ > 0
ΔV <0
ΔV = 0
ΔV>0

i'm pretty sure it is letter c.) car

> 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.

elements make up everything, and they combine to make compounds.

the answer is c