consider the reaction
C2H5OH(l) + 3O2(g) 2CO2(g) + 3H2O(l); change in H = -1.37 x 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?
2007-10-17 11:58:42 · 2 answers · asked by khanh1023 1 in Science & Mathematics ➔ Chemistry
2 and 3 are true. when enthalpy is negative it does mean exothermic. also thats a burning reaction when you burn a fuel you release heat. also if the the water is going to be a gas then it cant let go of all that heat it might end up being negative 1.0^103 kj instead of negative 1.37^103kj.
2007-10-17 12:10:08 · answer #1 · answered by Anonymous · 2⤊ 0⤋
The second and third are true.
2007-10-17 12:05:26 · answer #2 · answered by Gervald F 7 · 1⤊ 0⤋