What is the charge in enthalpy in kilojoules when 2.30 mol of Mg is completely reacted according to the following balanced chemical reaction to transfer -34.2 kJ of heat? 2 KClO3(s) → 2 KCl(s) +3 O2(g) ∆H = -89.4 kJ

they are all solids.

a). in this case, dh> 0 and sd> 0. if t becomes larger, the term "-tds" will become more negative. at some point, it is possible that -dts will be more negative than the dh is positive, and the reaction will become spontaneous. this is probably the correct answer, but you should look at all of the other possibilities and make sure of that.