When a system , ΔE is always negative. A) absorbs heat and does work
B) gives off heat and has work done on it
C) absorbs heat and has work done on it
D) gives off heat and does work
E) None of the above is always negative.

Which statement is actually true about the relationship between activation energy and reaction rates? low activation energy barriers result in low rates. high activation energy barriers result in low rates. low activation energy barriers result in no reaction. high activation energy barriers result in no reaction.