When iron is exposed to moisture and it rusts; the value of ΔG for the reaction is? by Sunday | Oct 14 | Chemistry JAMB | 0 comments A. neutral B. zero C. positive D. negative Correct Answer: Option D – negative Users Also Read These:Wrought iron is obtained by heating cast iron in a…The type of iron that is best suited for welding;…If the value of ΔH is positive for a reaction; it…What quantity of electrons is lost when one mole of…A piece of iron weighs 250N in air and 200N in a…