gasoline burning is a combustion reaction, which is always exothermic (gasoline engines get very blank when running).target 1 of 3 steam condensing is an exothermic process, since the steam blank a lot of heat when it condenses (which is why you can get severely burned from steam).target 2 of 3 water boiling is an endothermic process, since the water molecules in steam have blank kinetic energy than the molecules in the liquid phase.
