Consider the reaction: c2h5oh( l) + 3o2( g) → 2co2( g) + 3h2o( l); δ h = –1. 37 × 103 kj consider the following propositions: i. The reaction is endothermic ii. The reaction is exothermic. Iii. The enthalpy term would be different if the water formed was gaseous. Which of these propositions is (are) true?.