In: Chemistry
Using Appendix 4 for ∆Hf ° and ΔS˚, which of the following reactions is spontaneous:
(5.a) 2 H2S(g) + 3 O2(g) → 2 H2O(g) + 2 SO2(g)
(5.b) SO2(g) + H2O2(ℓ) → H2SO4(ℓ)
(5.c) S(g) + O2(g) → SO2(g)
You must determine whether a given reaction (i) is exothermic or endothermic, (ii) has a positive or negative entropy, and (iii) if a given reaction is spontaneous only at low temperature or only at high temperature, or at all temperatures.