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:If the value of ∆H for a reaction is negative, it…What quantity of electrons is lost when one mole of…When iron is exposed to moist air; it gradually…Aluminum is above iron in the electrochemical…An iron rod of length 50m and at a temperature of…